JP2022162377A - Apparatus for site, and method of displaying apparatus for site - Google Patents

Abstract

To provide a technology presenting much more pieces of information while ensuring visibility of a display in an apparatus for a site.SOLUTION: An apparatus for a site on one aspect, is equipped with a housing, a display portion, and a changing portion. The display portion is provided in the housing and includes a display surface on which a first display layer and a second display layer in which a visually recognized state changes between a non-visible state and a visible state are disposed. The changing portion changes display in the display portion by performing visualization control generating change from the non-visible state to the visible state to the first display layer and/or the second display layer.SELECTED DRAWING: Figure 3

Description

FIELD OF THE DISCLOSURE The present disclosure relates to field equipment displays.

The impact driver disclosed in Patent Document 1 below includes a display unit. In order to present various information to the user, the display unit includes a label indicating mode setting, device status, and the like, and a light emitting unit indicating whether or not the contents of the label apply.

JP 2018-183875 A

Since field devices such as impact drivers are compactly configured, the space available for the display section is small. Also, if the field equipment has a wide variety of modes, a different display is required for each mode. As a result, the display unit may not be able to present a large amount of information required by the user while ensuring display visibility.

An object of one aspect of the present disclosure is to provide a technique for presenting more information while ensuring visibility of the display in field equipment.

A field instrument in one aspect of the present disclosure includes a housing, a display, and a modifier. The housing is configured to be exposed to the field environment. The display unit is provided in the housing and includes a display surface on which a first display layer and a second display layer configured to change a visible state between an invisible state and a visible state are arranged. The changing unit is configured to change the display on the display unit by performing visualization control to change the first display layer and/or the second display layer from an invisible state to a visible state. be done.

Such on-site equipment can present more information while ensuring the visibility of the display.
According to another aspect of the present disclosure, a display method for field equipment is provided on a display unit provided in a housing exposed to the field environment so that the visible state changes between an invisible state and a visible state. arranging the configured first display layer and the second display layer; and a visualization control that causes a transition from an invisible state to a visible state for the first display layer and/or the second display layer. and changing the display on the display unit by performing

Such a display method for field equipment can exhibit the same effect as the field equipment described above.

1 is a perspective view showing the appearance of an impact driver according to a first embodiment; FIG. It is an explanatory view showing composition of an operating panel of an impact driver. FIG. 3 is an explanatory diagram showing a display example of an operation panel and a configuration of an existing operation panel; 3 is a block diagram showing the configuration of a controller involved in control of the operation panel; FIG. 4 is a flow chart showing mode setting processing in the impact driver. It is a perspective view which shows the external appearance of the laser marking device which concerns on 2nd Embodiment. FIG. 4 is an explanatory diagram showing the configuration of an operating panel of the laser marking device; FIG. 3 is an explanatory diagram showing a display example of an operation panel and a configuration of an existing operation panel; 4 is a flowchart showing mode setting processing in a laser marking device; FIG. 11 is a perspective view showing the appearance of a chainsaw according to a third embodiment; FIG. 4 is an explanatory diagram showing the configuration of the operation panel of the chainsaw; It is explanatory drawing which shows the cross-section structure of an operation panel about a touch-panel type and a push-button type. FIG. 3 is an explanatory diagram showing a display example of an operation panel and a configuration of an existing operation panel; 4 is a flowchart showing mode setting processing in the chain saw; It is a perspective view which shows the structure of the charger which concerns on 4th Embodiment. FIG. 4 is an explanatory diagram showing the configuration of a display panel of the battery charger; FIG. 4 is an explanatory diagram showing a display example of a display panel; 4 is a flowchart showing status display processing in the charger; It is a flowchart of display processing during charging. It is a perspective view which shows the structure of the blower which concerns on 5th and 6th embodiment. FIG. 4 is an explanatory diagram showing the configuration of a label display portion of the blower; FIG. 5 is an explanatory diagram showing a display example of a label display section; 4 is a flowchart showing error display processing in the blower; 4 is a flowchart showing battery state display processing in the blower; FIG. 11 is an explanatory diagram showing the configuration of a label display portion of a blower according to a sixth embodiment; FIG. 4 is an explanatory diagram showing a display example of a label display portion of a blower; 4 is a flow chart showing label display switching processing in the blower.

[Summary of embodiment]
A field device in an embodiment may comprise a housing, a display, and a changer. The housing may be configured to be exposed to the field environment. The display may be provided on the housing. Further, the display unit may include a display surface on which a first display layer and a second display layer are arranged so that a visible state changes between an invisible state and a visible state. The changing unit is configured to change the display on the display unit by performing visualization control to change the first display layer and/or the second display layer from an invisible state to a visible state. may be

If a field device in an embodiment comprises the housing described above, the display portion described above, and the changing portion described above, such field device may have more visibility while ensuring visibility of the display. information can be presented.

The modification unit may comprise a microcomputer, or may comprise a combination of electronic components such as discrete elements instead of or in addition to the microcomputer, or an Application Specific Integrated Circuit (ASIC ), an Application Specific Standard Product (ASSP), a programmable logic device such as a Field Programmable Gate Array (FPGA), or any combination thereof. You may prepare.

In some embodiments of the field device, the first display layer and the second display layer may include portions arranged on top of each other. In this case, since a plurality of different displays can be performed in the same area of the display surface, more information can be presented if the space is constant.

In an embodiment field instrument, the visualization control may turn on an illumination light that illuminates from behind the display surface. In addition/or, the first display layer and/or the second display layer are arranged such that a change from an invisible state to a visible state occurs due to transmitted light, which is illumination light transmitted from the back side of the display surface to the display surface side. may be configured to In this case, the display can be switched by a simple operation of turning on the irradiation light.

In some embodiments of the field instrument, the visualization control may change the color of the illumination that shines from behind the viewing surface. In addition/or, the first display layer and/or the second display layer can be in a visible state and an invisible state due to a difference in color of transmitted light, which is irradiation light transmitted from the back side of the display surface to the display surface side. It may be configured such that a change between In this case, the display can be switched by a simple operation of changing the color of the illumination light.

In one embodiment of the field device, the first display layer changes from a visible state to an invisible state and a second display layer changes from a visible state to an invisible state when the color of transmitted light changes from a first color to a second color different from the first color. The display layer may be configured to change from an invisible state to a visible state.

The field device in an embodiment may further comprise a status detector configured to detect a device status associated with the field device. Additionally/or, the changing unit may be configured to perform visualization control according to the device state detected by the state detecting unit.

Additionally/or alternatively, the device state may correspond to an operational mode of the field device. Additionally/or alternatively, the device status may correspond to the state of charge of a battery connected to the field device. Additionally/or alternatively, the device state may correspond to a state that occurs as the field device operates. Additionally/or alternatively, the device state may correspond to whether a predetermined switch has been actuated. Additionally/or alternatively, the device state may correspond to a state change that occurs at power up. In these cases, according to the various states of the device, it is possible to present information suitable for the state in an easy-to-read manner.

The on-site device of an embodiment may include an operation reception unit configured to receive an input operation on at least a portion of the display surface. In this case, the space for input operation and the space for display can be integrated, and space saving can be realized.

In the on-site device of one embodiment, the operation reception unit may include a decorative film and a capacitance sensor. The decorative film may form the display surface. A capacitive sensor may be laminated on the back surface of the decorative film.

In the on-site device of one embodiment, the operation reception unit may include a decorative film, a light emitting element, and a push button switch. The decorative film may form the display surface. The light emitting element and push button switch may be arranged on the back surface of the decorative film.

In an embodiment field device, the first display layer and the second display layer may show graphics and/or text. In this case, by displaying the patterns and/or characters desired by the user, the on-site device can be customized for each user, and the satisfaction level of the user can be improved.

In one embodiment, a display method for on-site equipment includes a display unit provided in a housing that is exposed to the on-site environment, and a first display unit configured such that a visible state changes between an invisible state and a visible state. and arranging a second display layer. In addition/or, the display on the display unit is changed by performing visualization control that causes a change from an invisible state to a visible state for the first display layer and/or the second display layer. You may prepare.

If a method of displaying field equipment in an embodiment includes all of the above procedures, such a method of displaying can present more information while ensuring visibility of the display.

In some embodiments, the above features may be combined in any combination. In some embodiments, any of the above features may be excluded.
[Specific exemplary embodiments]
Exemplary embodiments of the present disclosure will now be described with reference to the drawings.

[1. First Embodiment]
[1-1. impact driver]
The impact driver 1 of the present embodiment is an example of on-site equipment used in civil engineering, construction work, and the like, and is used to fix bolts, nuts, and the like to objects. In this embodiment, for the convenience of explanation, the front, rear, upper and lower sides of the impact driver 1 are defined as shown in FIG.

The impact driver 1 includes a tool body 10 and a battery 20, as shown in FIG. The battery 20 is detachably attached to the tool body 10 and supplies power to the tool body 10 .

The tool body 10 has a housing 11 . The housing 11 accommodates a motor, a striking mechanism, and the like.
The tool body 10 has a handgrip 12 . A handgrip 12 is installed below the housing 11 . The handgrip 12 is shaped so that the user of the impact driver 1 can hold the handgrip 12 with one hand.

The tool body 10 has a chuck sleeve 13 . The chuck sleeve 13 is installed in front of the housing 11 . The chuck sleeve 13 has a mounting mechanism at its front end for detachably mounting various tool bits such as a driver bit and a socket bit.

The tool body 10 has a trigger 14 . The trigger 14 is installed in front of the upper portion of the handgrip 12 and is operated when the impact driver 1 is driven by the user of the impact driver 1 . The trigger 14 is arranged at a position where the user can pull it with a finger while gripping the handgrip 12 .

The tool body 10 has a battery mounting portion 15 . The battery mounting portion 15 is installed at the lower end portion of the handgrip 12, and the battery 20 is detachably mounted thereon.
The tool body 10 has a light 16 . A light 16 is mounted above the trigger 14 on the handgrip 12 and illuminates the area where work is being performed by the tool bit attached to the chuck sleeve 13 . The light 16 is turned on and off by operating a light button on an operation panel 18, which will be described later.

The operation panel 18 of the tool body 10 is installed on the upper surface of the battery mounting portion 15 opposite to the lower surface on which the battery 20 is mounted.
[1-2. control panel]
As shown in FIG. 2, the operation panel 18 may include a decorative film 181 forming a display surface exposed to the outside. Hereinafter, in the decorative film 181, the display surface side is called the front side, and the opposite side is called the back side.

The operation panel 18 has a first operation receiving section 18a on its display surface. The first operation reception unit 18a may have a mode setting/change button. Also, the first operation reception unit 18a may include a light button. On the surface of the decorative film 181 on which the first operation reception unit 18a is located, circles representing the positions of the mode setting/change button and the light button and letters representing the types of the buttons may be printed. The circle marks and characters printed on the first operation receiving portion 18a are display layers that are always visible regardless of whether the backlight is on or off. A capacitive sensor 182 forming a touch panel together with the decorative film 181 may be layered on the rear surface of the decorative film 181 where the first operation reception unit 18a is located.

The mode setting/change button is pressed when setting the operation mode of the impact driver 1 and when selecting a function within the set operation mode. By long-pressing the mode setting/change button, the operation mode of the impact driver 1 is alternately switched between the "percussion mode" and the "easy mode" (registered trademark). By short-pressing the mode setting/change button, one of the four functions individually set for each operation mode is selected in order. Note that the long press operation is an operation in which the duration of pressing the target button is longer than or equal to a preset threshold time. A short press operation is an operation in which the duration of pressing the target button is less than the threshold time.

The light button is pressed when the light 16 provided on the impact driver 1 is turned on or off.
The operation panel 18 has a first selection display section 18c on its display surface. The first selection display portion 18 c may be formed in a rectangular shape and may include four windows arranged in a row along the horizontal direction of the operation panel 18 . Rectangular marks indicating the contours of the four windows may be printed on the surface of the decorative film 181 where the first selection display portion 18c is located. The rectangular mark printed on the first selection display portion 18c is a display that is always visible regardless of whether the backlight is on or off. On the back side of the decorative film 181, first to fourth light emitting diodes (LEDs) 184 to 187 are arranged at positions facing the four windows of the first selection display portion 18c. The first to fourth LEDs 184 to 187 emit red light, for example. However, the emission color is not limited to red. Hereinafter, the lights emitted from the first to fourth LEDs 184 to 187 to the four windows of the selection display section 18c are referred to as selection lights.

The operation panel 18 has a first variable display portion 18b on its display surface. The first variable display portion 18b is a rectangular portion arranged above the first selection display portion 18c. It may be printed in an overlapping manner. A fifth LED 183 that emits light in two colors of red and green may be arranged at a position facing the center of the first variable display portion 18b on the back side of the decorative film 181 . The emission color of the fifth LED 183 is not limited to red and green, and may be a combination of red and blue, for example. Below, the light emitted from the fifth LED 183 to the variable display section 18b is called a backlight.

Here, LEDs are used as the light-emitting elements that generate the selection light and the backlight, but the light-emitting elements are not limited to LEDs.
In the first variable display portion 18b, a display layer for hitting mode and a display layer for easy mode may be provided so as to overlap each other. The display layer may be provided, for example, by printing a special paint. However, as shown in FIG. 3, the display layer for the striking mode is configured to be invisible when the backlight is off and visible when the green backlight is on. The display layer for the comfort mode is configured to be invisible when the backlight is off and visible when the red backlight is on.

The display layer, which becomes invisible when the light is off and becomes visible when the backlight is on, is not a display layer that is visible using reflected light, as is the case with ordinary printed matter, but is configured to be visible using light transmitted through the backlight. This is the display layer with

Specifically, in the decorative film 181, the portion where the display layer exists is configured to transmit the light of the color irradiated when the display layer is made visible, and the portion where the display layer does not exist is It is constructed so as not to transmit light. In addition, a portion where a plurality of display layers overlap is configured so that light of a plurality of colors corresponding to the overlapping display layers is transmitted. Alternatively, in the decorative film 181, the portion where the display layer exists is configured so as not to transmit the light of the color irradiated when the display layer is made visible, and the portion where the display layer does not exist transmits the light. may be configured to In this case, the portion where the plurality of display layers overlap is configured so that none of the plurality of colors of light is transmitted. The transmission/non-transmission of light is determined, for example, by the material of the decorative film 181 and the properties of paint applied to the display layer portion on the surface of the decorative film 181 .

The display layer for the batting mode is arranged in association with the four windows of the first selection display section 18c. In the display layer for the batting mode, the characters "weak", "medium", "strong", and "fastest" corresponding to the functions in the batting mode, and the character "batting" indicating that the equipment mode is the batting mode. may be included.

The easy-to-use mode display layer is arranged in association with the four windows of the first selection display section 18c. In the display layer for Rakuraku mode, the characters "wood", "bolt", "thin", and "thickness" corresponding to the functions in Rakuraku mode and "Rakuraku and the characters "for text" representing "thin" and "thick".

[1-3. controller]
The impact driver 1 includes a controller 21 inside the tool body 10 , for example, inside the battery mounting portion 15 below the operation panel 18 .

The controller 21 operates by receiving power from the battery 20 mounted in the battery mounting portion 15, and controls the motor and impact mechanism housed in the housing 11, controls the operation panel 18, and the like.

FIG. 4 shows the configuration of the controller 21 involved in controlling the operation panel 18. As shown in FIG. That is, FIG. 4 omits components other than the components related to the control of the operation panel 18, that is, the drive circuit for driving the motor and impact mechanism.

The controller 21 has a state detector 23 . The state detection unit 23 detects the state of the device related to the display control of the operation panel 18 and supplies it to the control circuit 26 . The state of the device related to display control includes the state of operation of each button belonging to the operation reception section 18a of the operation panel 18. FIG. The operation state of the button includes presence/absence of the pressing operation and the duration of the pressing operation. In addition, the state of the device related to display control includes the operating state of various physical switches provided in the device, the charging state of the battery 20, and abnormal states such as heat generation and overload caused by the operation of the device. may be included.

The controller 21 has a backlight driving section 24 . The backlight driving section 24 causes the fifth LED 183 to emit green or red light according to the instruction from the control circuit 26 . As a result, a green or red backlight is lit on the first variable display portion 18b.

The controller 21 has a selection light driver 25 . The selection light driving section 25 individually causes the first to fourth LEDs 184 to 187 to emit light according to instructions from the control circuit 26 . As a result, a red selection light is lit in the window portion belonging to the first selection display portion 18c.

The controller 21 has a control circuit 26 . Control circuit 26 may include a microcomputer with CPU 261 and memory 262 .
[1-4. Mode setting process]
Mode setting processing executed by the control circuit 26 will be described with reference to the flowchart of FIG. The mode setting process is executed when the control circuit 26 is activated by starting power supply to the control circuit 26 .

When the process is started, in S110, the control circuit 26 initializes the operation mode to the impact mode, and lights the backlight of the first variable display section 18b in green. Further, the control circuit 26 lights the selection light at the initial position corresponding to the default function in the hitting mode, for example, the leftmost window in the first selection display section 18c.

In subsequent S120, the control circuit 26 determines whether or not a long press operation of the mode setting/change button has been detected by the state detection unit 23. If a long press operation has been detected, the process proceeds to S130. , the process proceeds to S140 if a long press operation has not been detected.

In S130, the control circuit 26 switches the operation mode, switches the color of the backlight of the first variable display section 18b, and returns the process to S120. That is, if the operation mode is the hitting mode and the backlight of the first variable display section 18b is lit in green, the operation mode is switched to the easy mode, and the first variable display section 18b is displayed. To change the lighting color of the backlight from green to red. Conversely, if the operation mode is the easy mode and the backlight of the first variable display section 18b is lit in red, the operation mode is switched to the impact mode and the first variable display section 18b is displayed. change the lighting color of the backlight from red to green.

In S140, the control circuit 26 determines whether or not a short press operation of the mode setting/switching button has been detected. If a short press operation has been detected, the process proceeds to S150. If not, the process returns to S120.

In S150, the control circuit 26 switches the function selection within the set operation mode, and also shifts the window portion where the selection light is lit in the first selection display portion 18c to the right by one, The process returns to S120. However, in the first selection display section 18c, when the selection light of the rightmost window is lit, the selection light of the leftmost window is switched to be lit.

[1-5. terminology]
In the present embodiment, the housing of the tool body 10 corresponds to the housing in the present disclosure, the operation panel 18 corresponds to an example of the display section in the present disclosure, and the control circuit 26 of the controller 21 that executes the mode setting process corresponds to the housing in the present disclosure. It corresponds to an example of the change part in .

[1-6. effect]
According to 1st Embodiment detailed above, there exist the following effects.
(1a) In the present embodiment, a display layer indicating what function is associated with a window portion in which a selection light representing a selected function is lit is switched for each operation mode. Is displayed. Therefore, as shown in the bottom part of FIG. You can reduce the number of characters displayed at once. As a result, characters and the like can be displayed in a larger size, so the visibility of the operation panel 18 can be improved without enlarging the operation panel 18 . In addition, since the number of windows for selection lights is reduced, the number of parts required for manufacturing the operation panel 18 is reduced, and the configuration of the device can be simplified.

[2. Second Embodiment]
[2-1. Differences from First Embodiment]
Since the second embodiment is different from the first embodiment in terms of field equipment and display contents on the operation panel, these differences will be described below.

[2-2. laser marking device]
The laser marking device 3 of the present embodiment is an example of on-site equipment used in civil engineering, construction work, etc., and is configured to project a reference line by laser light onto an object.

As shown in FIG. 6, the laser marking device 3 includes a leg portion 31, a rotating portion 32, laser light generating portions 331 to 334, an operation panel 34, and a controller 35.
The leg portion 31 has three legs and is placed on the installation surface (for example, the floor) of the laser marking device 3 .

The rotating portion 32 has a substantially cylindrical outer shape and is attached to the upper side of the leg portion 31 so as to be rotatable about a rotation axis L1 extending vertically from the leg portion 31 .
A side surface of the rotating portion 32 is provided with first to fourth laser light generating portions 331 to 334 that emit laser light from the inside of the rotating portion 32 toward the outside. The first to fourth laser light generators 331 to 334 may be arranged one by one in each of four areas obtained by equally dividing the outer peripheral surface of the rotating part 32 into four areas in the circumferential direction. The first to fourth laser light generators 331 to 334 emit horizontal laser light indicating the horizontal reference line and vertical laser light indicating the vertical reference line, respectively.

The operation panel 34 is a circular panel provided on the upper surface of the rotating part 32, and is used to set/change the brightness of the emitted laser light and the line configuration of the reference line formed by the laser light.

[2-3. control panel]
As shown in FIG. 7, the operation panel 34 has a decorative film 341 forming a display surface exposed to the outside.

The operation panel 34 has a second operation receiving section 34a on its display surface. The second operation reception unit 34a has a brightness switching button. The second operation reception unit 34a also has a line switching button. On the surface of the decorative film 341 on which the second operation reception unit 34a is located, circles representing the positions of the brightness switching button and the line switching button and letters representing the types of the buttons may be printed. The circle marks and letters printed on the second operation receiving portion 34a are a display layer that is always visible regardless of whether the backlight is on or off. A capacitive sensor 342 forming a touch panel together with the decorative film 341 may be layered on the rear surface of the decorative film 341 where the second operation reception unit 34a is located.

The brightness switching button is pressed when setting or changing the brightness of the laser beam emitted by the laser marking device 3 . When the brightness switching button is pressed, the brightness setting is switched to one of "eco", "normal", "high brightness", and "ultra high brightness" in order.

The line switching button is pressed when setting or changing the line configuration of the reference line formed by the laser beam emitted by the laser marking device 3 . When the line switching button is pressed, the line configuration setting is switched to one of "full line", "overhead", "street center", and "roku" in order.

The operation panel 34 has a second selection display section 34c on its display surface. The second selection display portion 34c has four circular windows. The four windows belonging to the second selection display portion 34c may be arranged in a line along the vertical direction of the operation panel 34. FIG. Round marks indicating the contours of the four windows may be printed on the surface of the decorative film 341 where the second selection display portion 34c is located. On the back side of the decorative film 341, sixth to ninth LEDs 344 to 347 are arranged at positions facing the four windows belonging to the second selection display portion 34c.

The operation panel 34 has a remaining battery level display section 34d on its display surface. The remaining battery level display portion 34d may include one circular window portion. On the surface of the decorative film 341 where the remaining battery level display portion 34d is located, a circle indicating the outline of the window and the letters "Battery Level" near the circle may be printed. A tenth LED 348 is arranged on the back side of the decorative film 341 at a position facing the window of the remaining battery level display portion 34d.

The circle marks and characters printed on the selection display section 34c and the remaining battery level display section 34d are display layers that are always visible regardless of whether the backlight is on or off. Also, the sixth to tenth LEDs 344 to 348 emit red light, for example. However, the emission color is not limited to red.

The operation panel 34 has a second variable display portion 34b on its display surface. The second variable display portion 34b is a rectangular portion arranged on the right side of the second selection display portion 34c on the display surface of the operation panel 34. In each setting mode, each of the second selection display portions 34c Characters associated with the window may be overprinted. An eleventh LED 343 that emits light in two colors of red and green is arranged on the back side of the decorative film 341 at a position facing the center of the second variable display portion 34b. The luminescent color of the eleventh LED 343 is not limited to red and green, and may be a combination of red and blue, for example. Below, the light emitted from the eleventh LED 343 to the second variable display portion 34b is referred to as a backlight.

In the second variable display section 34b, a luminance mode display layer and a line mode display layer may be overlapped. However, as shown in FIG. 8, the display layer for luminance mode becomes invisible when the backlight of the second variable display portion 34b is turned off, and the backlight of the second variable display portion 34b is turned on in green. configured to be visible at times. The display layer for the line mode is configured to be invisible when the backlight of the second variable display portion 34b is turned off, and to be visible when the backlight of the second variable display portion 34b is lit in red. be.

The luminance mode display layer is arranged in association with the four windows belonging to the second selection display section 34c. The display layer for luminance mode may include the words "eco", "normal", "high luminance", and "ultra high luminance" representing the types of luminance that can be selected.

The line mode display layer is arranged in association with the four windows belonging to the second selection display section 34c. The display layer for line mode may include the characters "full line", "overhead", "street core", and "roku" to represent the types of selectable line settings.

The remaining battery level display section 34d displays the remaining battery level regardless of the setting mode.
[2-5. controller]
The laser marking device 3 has a controller 35 inside the rotating section 32 .

The controller 35 executes control of the first to fourth laser light generators 331 to 334, control of the mechanism for rotationally driving the rotating section 32, and control of the operation panel . The configuration related to the control of the operation panel 34 in the controller 35 is similar to that of the controller 21 shown in FIG.

However, the state detection unit 23 is configured to detect at least the operation state of each button belonging to the second operation reception unit 34a of the operation panel 34 . The backlight drive unit 24 is configured to light the backlight of the second variable display unit 34b in green or red by causing the eleventh LED 343 to emit green or red light in accordance with an instruction from the control circuit 26. be done. The selection light drive unit 25 lights the red selection light in the window of the second selection display unit 34c by individually causing the sixth to ninth LEDs 344 to 347 to emit light according to the instruction from the control circuit 26. configured as

[2-6. Mode setting process]
Mode setting processing executed by the control circuit 26 of the controller 35 will be described with reference to the flowchart of FIG. The mode setting process is executed when power supply to the control circuit 26 is started and the control circuit 26 is activated.

When the process is started, in S210, the control circuit 26 sets the setting mode to the line mode, which is the initial setting, and lights the backlight of the second variable display section 34b in red. Further, the control circuit 26 lights the selection light in the window corresponding to the default setting in the line mode among the four windows belonging to the second selection display section. For example, when the default setting is "full line", the control circuit 26 lights the selection light in the uppermost window portion of the second selection display portion 34c.

In subsequent S220, the control circuit 26 determines whether or not the pressing operation of the brightness switching button is detected by the state detection unit 23. If the pressing operation is detected, the process proceeds to S230, and the pressing operation is detected. If not detected, the process proceeds to S260.

In S230, the control circuit 26 determines whether or not the current set mode is the line mode, and if it is the line mode, the process proceeds to S240, and if it is the brightness mode instead of the line mode, the process proceeds to S250. do.

At S240, the control circuit 26 stores the current setting in line mode and switches the setting mode from line mode to luminance mode. Further, the control circuit 26 turns on the backlight of the second variable display section 34b in green, and based on the setting in the luminance mode stored when the setting mode was switched last time, the window corresponding to the setting is displayed. The selection light is turned on for the part, and the process returns to S220.

In S250, the control circuit 26 switches the setting within the luminance mode, turns on the selection light in the window corresponding to the switched setting, and returns to the process S220.
In S260, the control circuit 26 determines whether or not the line switching button has been pressed.

At S270, the control circuit 26 determines whether or not the current setting mode is the brightness mode, and if it is the brightness mode, the process proceeds to S280, and if it is the line mode instead of the brightness mode, the process proceeds to S290. do.

At S280, the control circuit 26 stores the current setting within the luminance mode and switches the setting mode from luminance mode to line mode. Further, the control circuit 26 turns on the backlight of the second variable display section 34b in red, and based on the setting in the line mode that was stored when the previous setting mode was switched, the window corresponding to the setting is displayed. The selection light is turned on for the part, and the process returns to S220.

In S290, the control circuit 26 switches the setting within the line mode, lights the selection light in the window corresponding to the switched setting, and returns the process to S220.
In S240 and S280, when the setting mode is switched, the window portion for turning on the selection light (that is, the setting within the mode) is set to the preset default setting instead of the stored previous setting. may

[2-7. terminology]
In the present embodiment, the housing of the rotating section 32 corresponds to an example of the housing in the present disclosure, the operation panel 34 corresponds to an example of the display section in the present disclosure, and the control circuit 26 of the controller 35 that executes the mode setting process It corresponds to an example of a modified part in the present disclosure.

[2-8. effect]
According to the second embodiment described in detail above, the effect (1a) of the first embodiment described above is obtained, and the following effects are also obtained.

(2a) In the present embodiment, since the display of the second variable display portion 34b is switched for each setting mode, visibility is reduced compared to the operation panel that does not perform variable display as shown at the bottom of FIG. You can do more display in a limited space without clutter.

[3. Third Embodiment]
[3-1. Differences from First Embodiment]
Since the third embodiment is different from the first embodiment in terms of field equipment used for explanation and contents displayed on the operation panel, these differences will be explained below.

[3-2. chainsaw]
The chain saw 5 of the present embodiment is an example of field equipment used at construction sites, forestry sites, and the like.

As shown in FIG. 10, the chain saw 5 includes a tool body 50 and a battery 60. As shown in FIG. The battery 60 is detachably attached to the tool body 50 and supplies power to the tool body 50 .

The tool body 50 has a saw chain 51 . The saw chain 51 is a circular chain in which a plurality of cutters are connected to each other.
The tool body 50 has a guide bar 52 . The guide bar 52 is an elongated plate-like member attached to the housing 53 so as to protrude from the housing 53 . The saw chain 51 is attached along the periphery of the guide bar 52 in a rotatable state.

The tool body 50 has a housing 53 . The housing 53 accommodates a sprocket, a motor, and the like, and drives the saw chain 51 to rotate the saw chain 51 along the periphery of the guide bar 52 . As a result, the chain saw 2 cuts an object such as wood.

Hereinafter, the direction in which the guide bar 52 protrudes from the housing 53 is defined as the front.
The housing 53 has a first grip 54 . The first grip 54 spans from the front to the rear of the housing 53 above the housing 53 .

The housing 53 has a second grip 55 . The second grip 55 extends from the front side wall of the first grip 54 to the rear end side wall of the housing 53 on the side of the housing 53 .

Housing 53 includes handguard 56 . A hand guard 56 is provided in front of the first grip 54 and connected to an emergency stop mechanism of the motor.
The battery 60 is detachably attached to the rear lower end portion of the housing 53 .

The first grip 54 has a drive switch 57 . The drive switch 57 is provided on the lower side of the first grip 54 at a position where it can be pulled by the user's hand holding the first grip 54 . The drive switch 57 is a trigger switch that is turned on when pulled by the user.

The first grip 54 has an operation panel 59 . The operation panel 59 is positioned at the upper front end of the first grip 54 . The operation panel 59 is used for on/off operation of the main power source and display of the operating state of the chain saw 5 .

[3-3. control panel]
As shown in the upper part of FIGS. 11 and 12, the operation panel 59 has a decorative film 591 forming a display surface exposed to the outside.

The operation panel 59 has an operation reception/display section 59a on its display surface. The operation reception/display unit 59a may include a main power button. The main power button is pressed when starting the chainsaw 5 and when switching the operation mode of the chainsaw 5 .

On the surface of the decorative film 591 where the operation reception/display portion 59a is located, a circle representing the position of the main power button and the characters "power supply" inside the circle may be printed.
A capacitive sensor 592 forming a touch panel together with the decorative film 591 may be laminated on the back side of the decorative film 591 where the operation reception/display section 59a is located. Furthermore, a twelfth LED 593 that emits light in two colors of red and green is arranged on the back side of the decorative film 591 at a position facing the center of the operation reception/display section 59a. Hereinafter, the light emitted from the twelfth LED 593 to the operation reception/display section 59a is referred to as a backlight. The capacitance sensor 592 is made of a material that allows the backlight to pass through.

Further, on the surface of the decorative film 591, in the circular mark representing the main power button, the characters "standard mode" and "power mode" indicating the operation state of the device are superimposed on the characters "power". may be printed. However, as shown in FIG. 13, the characters "power supply" become visible when the backlight of the operation reception/display unit 59a is turned off, and become invisible when the backlight of the operation reception/display unit 59a is turned on. It is a display layer configured to be The characters "standard mode" are invisible when the backlight of the operation reception/display section 59a is turned off or red, and visible when the backlight of the operation reception/display section 59a is green. It is a display layer configured to be The letters "power mode" become invisible when the backlight of the operation reception/display unit 59a is turned off or green, and become visible when the backlight of the operation reception/display unit 59a is red. It is a display layer configured to be

It should be noted that the character "power supply" is a display layer that is visually recognized by reflected light, and actually the display does not disappear when the backlight is turned on. When the transmitted light from the backlight is stronger than the reflected light, a phenomenon occurs in which the letters "power source" visually recognized by the reflected light become relatively difficult to see. The state of the display layer in which this phenomenon occurs is the invisible state.

[3-4. controller]
The chain saw 5 has a controller 61 inside the tool body 50 .
The controller 61 controls the motors housed in the housing 53 and controls the operation panel 59 . The controller 61 has the same configuration as the controller 21 shown in FIG. 4 except that the selection light drive unit 25 is omitted.

However, the state detection unit 23 is configured to detect at least the operation state of the main power button of the operation panel 59 . The backlight drive unit 24 is configured to light the backlight of the operation reception/display unit 59a in green or red by causing the twelfth LED 593 to emit green or red light according to an instruction from the control circuit 26. be.

[3-5. Mode setting process]
Mode setting processing executed by the control circuit 26 of the controller 61 will be described with reference to the flowchart of FIG. 14 and the display example of FIG. The mode setting process is executed when power supply to the control circuit 26 is started and the control circuit 26 is activated. Immediately after the control circuit 26 is activated, a state in which power is not being supplied to a drive mechanism such as a motor is called a rest state. Further, immediately after the control circuit 26 is activated, the backlight of the operation reception/display section 59a is turned off, so the characters "power supply" are visible on the operation reception/display section 59a.

When the process is started, in S310, the control circuit 26 determines whether or not the pressing operation of the main power button has been detected by the state detection unit 23. If the pressing operation has been detected, the process proceeds to S320. If the pressing operation is not detected after shifting, the process of S310 is repeated to wait.

In S320, the control circuit 26 initializes the operation mode of the chainsaw 5 to the standard mode, and lights the backlight of the operation reception/display section 59a in green. As a result, in the operation reception/display section 59a, the characters "power supply" become invisible and the characters "standard mode" become visible. By pressing the main power button, power supply to a driving mechanism such as a motor is started, and the chain saw 5 changes from a rest state to a movable state.

In subsequent S330, the control circuit 26 determines whether or not the pressing operation of the main power button has been detected by the state detection unit 23. If the pressing operation has been detected, the process proceeds to S340, and the pressing operation is detected. If not detected, it waits by repeating the process of S330.

In S340, the control circuit 26 determines whether or not the detected pressing operation is a long pressing operation. If it is a long pressing operation, the process proceeds to S350. Transition.

In S350, the control circuit 26 puts the chain saw 5 in a resting state by stopping power supply to the drive mechanism such as the motor, turns off the backlight of the operation reception/display section 59a, and ends the process. As a result, in the operation reception/display unit 59a, the characters that had been visible due to the backlight become invisible, and the characters "power supply" become visible.

At S360, the control circuit 26 determines whether or not the currently set operation mode is the standard mode. If it is the standard mode, the process proceeds to S370. to S380.

In S370, the control circuit 26 switches the operation mode from the standard mode to the power mode, changes the lighting color of the backlight of the operation reception/display section 59a from green to red, and returns the process to S330. As a result, the operation reception/display unit 59a makes the characters "standard mode" invisible and the characters "power mode" visible.

In S380, the control circuit 26 switches the operation mode from the power mode to the standard mode, changes the lighting color of the backlight of the operation reception/display section 59a from red to green, and returns the process to S330. As a result, in the operation reception/display unit 59a, the characters "power mode" become invisible and the characters "standard mode" become visible.

That is, when the chain saw 5 is in the resting state, on the operation panel 59, the word "power" is displayed at the position of the main power button. When the main power button is pressed in the resting state, the chainsaw 5 is put into the normal mode, and the words "standard mode" are displayed at the position of the main power button. In the operable state, when the main power button is pressed for a long time, the chainsaw 5 returns to the rest state, and the word "power" is displayed at the position of the main power button. In the movable state, each time the main power button is pressed for a short time, the operation mode alternates between standard mode and power mode. mode" or "power mode" is displayed.

[3-6. terminology]
In the present embodiment, the housing of the tool body 50 corresponds to an example of the housing in the present disclosure, the operation panel 59 corresponds to an example of the display section in the present disclosure, and the control circuit 26 of the controller 61 that executes the mode setting process is It corresponds to an example of a modified part in the present disclosure.

[3-7. effect]
According to the third embodiment described in detail above, the effects (1a) and (2a) of the first and second embodiments described above are obtained, and the following effects are also obtained.

(3a) In the present embodiment, the portion of the operation panel 59 that functions as the main power button that is pressed also functions as a portion that displays the state of the chainsaw 5 . Therefore, in the operation panel 59, unlike the operation panel shown at the bottom of FIG. 13, without preparing a new space different from the space for the main power button to be operated, the device generated as a result of the operation of the main power button can be controlled. can be presented to the user.

[3-8. Modification]
In the present embodiment, the pressing operation on the operation reception/display unit 59a is detected using the capacitance sensor 592 laminated on the back surface of the decorative film 591, but the method of detecting the pressing operation is static. It is not limited to capacitance sensor 592 . For example, as shown in the lower part of FIG. 12, a push button switch 594 arranged on the back surface of the decorative film 591 may be used for detection. However, in this case, the twelfth LED 593 may be arranged at the center of the movable portion 594a of the push button switch 594 that is pressed.

[4. Fourth Embodiment]
[4-1. Differences from First Embodiment]
In the fourth embodiment, the on-site equipment used for explanation and the display contents on the display panel 74 are different from the display contents on the operation panel 18 of the first embodiment, so these differences will be described below.

[4-2. charger]
The charger 7 of the present embodiment is an example of on-site equipment that is used to charge batteries 8 mounted on various electric working machines.

As shown in FIG. 15 , the charger 7 has a first mounting portion 71 . The first mounting portion 71 is provided on the upper surface of the housing of the charger 7 . The charger 7 also includes a second mounting portion 72 . The first terminal portion 72 is provided on the first mounting portion 71 .

The battery 8 has a second mounting portion 81 . The second mounting portion 81 is provided on the bottom surface of the battery 8 . The battery 8 also includes a second terminal portion 82 . The second terminal portion 82 is provided on the second mounting portion 81 and includes a plurality of plate-like terminals.

The first mounting portion 71 is configured in a shape corresponding to the shape of the second mounting portion 81 . The first terminal portion 72 includes a plurality of terminals configured to fit into the second terminal portion 82 .
The second mounting portion 81 is slidably mounted on the first mounting portion 71 . When the second mounting portion 81 is mounted on the first mounting portion 71 , the plate-like terminals of the second terminal portion 82 are fitted to the terminals of the first terminal portion 72 . This physically and electrically connects the battery 8 to the charger 7 .

The charger 7 has a power cord 73 . A power cord 73 is connected to an external power source. The external power supply is, for example, a commercial power supply of AC 100V. The charger 7 generates second power from the first power supplied from the external power supply and supplies the generated second power to the battery 8 . Note that the external power supply is not limited to a commercial power supply. The external power source may be a DC power source, such as a cigarette lighter.

The charger 7 has a display panel 74 . The display panel 74 is provided beside the first mounting portion 71 on the upper surface of the housing of the charger 7 .
[4-3. display panel]
As shown in FIG. 16, the display panel 74 has a decorative film 741 forming a display surface exposed to the outside. The decorative film 741 has a third variable display portion 74a, a fourth variable display portion 74b, and a fifth variable display portion 74c on the display surface. The third to fifth variable display portions 74a to 74c are all horizontally long rectangular regions, and may be arranged side by side in the vertical direction.

On the back side of the decorative film 741, thirteenth to fifteenth LEDs 742 to 744 that emit two colors of green and red are arranged at positions facing the third to fifth variable display portions 74a to 74c, respectively. be. Hereinafter, light emitted from the thirteenth to fifteenth LEDs 742 to 744 to the third to fifth variable display portions 74a to 74c is referred to as backlight.

On the display surface of the decorative film 741 where the third variable display portion 74a is located, the characters "before charging" and "during charging" may be superimposed and printed. On the display surface of the decorative film 741 on which the fourth variable display portion 74b is located, the characters "fully charged" and "practically charged" may be superimposed and printed. On the display surface of the decorative film 741 where the fifth variable display portion 74c is located, the characters "charging not possible" and "fan malfunction" may be superimposed and printed.

Among the characters printed on the third to fifth variable display portions 74a to 74c, the characters "before charging", "fully charged", and "not charged" are printed on the third to fifth variable display portions 74a to 74c. becomes visible when the backlight of . is a display layer that becomes invisible when is turned off.

Of the characters printed on the third to fifth variable display portions 74a to 74c, the characters "charging", "completion of practical charging", and "fan failure" are printed on the third to fifth variable display portions 74a to 74c. becomes visible when the backlight of . is a display layer that becomes invisible when is turned off.

[4-4. controller]
The charger 7 includes a controller 75 inside a housing in which the first mounting portion 71 and the display panel 74 are provided. The charger 7 also includes a fan in the housing for circulating the air inside the housing and the outside air.

The controller 75 executes charging control of the battery 8 attached to the first attachment portion 71 and control of the display panel 74 . The configuration of the controller 75 related to the control of the display panel 74 is the same as that of the controller 21 shown in FIG. 4 except that the selection light driving section 25 is omitted.

However, the state detection unit 23 is configured to detect at least the mounting state of the battery 8 to the first mounting unit 71, the charged state of the mounted battery 8, and the operating state of the fan. The backlight drive unit 24 causes the 13th to 15th LEDs 742 to 744 to emit green or red light in accordance with instructions from the control circuit 26, thereby backlighting the third to fifth variable display units 74a to 74c. lights green or red.

[4-5. Status display processing]
The state display processing executed by the control circuit 26 of the controller 75 will be described with reference to the flow charts of FIGS. 18 and 19 and the display example of FIG. 17 to 19, the backlight of the third variable display portion 74a is denoted as BL1, the backlight of the fourth variable display portion 74b is denoted as BL2, and the backlight of the fifth variable display portion 74c is denoted as BL3. .

The status display process is started when power is supplied through the power cord 73 and the controller 75 is activated.
When the process is started, in S410, the control circuit 26 lights the backlight (BL1) of the third variable display section 74a in green. As a result, the characters "before charging" are visible on the third variable display portion 74a.

In subsequent S420, the control circuit 26 determines whether or not the battery 8 is attached to the first attachment portion 71 by confirming the attachment state of the battery 8 via the state detection portion 23. If so, the process proceeds to S430, and if not mounted, the process returns to S410.

In S430, the control circuit 26 acquires the state of charge of the battery 8 attached to the first attachment portion 71 via the state detection portion 23, and determines whether or not the battery 8 is in a chargeable state. The state of charge of the battery 8 is determined by a control circuit on a control board provided in the battery 8 by checking the state of a plurality of battery cells included in the battery 8, and the determination result is sent to the control circuit of the charger 7. 26. If the control circuit 26 determines that the battery 8 is in a chargeable state, the process proceeds to S460, and if it determines that the battery 8 is in a non-chargeable state, the process proceeds to S440.

In S440, the control circuit 26 turns on the backlight (BL3) of the fifth variable display section 74c in green and turns off the backlight (BL1) of the third variable display section 74a. As a result, the characters "charging not possible" on the fifth variable display portion 74c become visible, and the characters on the third variable display portion 74a become invisible.

In subsequent S<b>450 , the control circuit 26 checks the mounting state of the battery 8 via the state detection section 23 to determine whether the battery 8 is removed from the first mounting section 71 . If the control circuit 26 determines that the battery 8 has not been removed, it waits by repeating the process of S450, and if it determines that the battery 8 has been removed, the process returns to S410.

In S460, the control circuit 26 lights the backlight (BL1) of the third variable display section 74a in red. As a result, the characters "charging" on the third variable display portion 74a become visible.

In subsequent S470, the control circuit 26 determines whether or not the fan is operating via the state detection unit 23. If it is operating, the process proceeds to S490, and if it is not operating, the process proceeds to S480. do.

In S480, the control circuit 26 lights the backlight (BL3) of the fifth variable display portion 74c in red, and advances the process to S490. As a result, in addition to the characters "Charging" on the third variable display portion 74a, the characters "Fan Error" on the fifth variable display portion 74c become visible.

In S<b>490 , the control circuit 26 starts charging control for the battery 8 attached to the first attachment portion 71 . The charge control is control for adjusting the charge current according to the voltage values and temperatures of the plurality of battery cells of the battery 8, and is performed in parallel with the state display process.

In subsequent S500, the control circuit 26 executes a charging display process for displaying the state of charge of the battery 8, which changes according to the charging control.
In subsequent S510, the control circuit 26 starts charging standby control that is executed after the charging control ends, and ends the process. The charging standby control is control for monitoring whether or not the battery is set in the charger by monitoring the terminal voltage of the charger.

Next, the contents of the charging display process executed in S500 by the control circuit 26 will be described with reference to the flowchart of FIG.
When the process is started, in S610, the control circuit 26 checks the state of charge of the battery 8 via the state detector 23 to determine whether 80% charging has been completed. If the control circuit 26 determines that 80% charging has been completed, the process proceeds to S620, and if it determines that 80% charging has not been completed, the control circuit 26 waits by repeating the process of S610.

In subsequent S620, the control circuit 26 lights the backlight (BL2) of the fourth variable display section 74b in red. As a result, the characters "charging" on the third variable display portion 74a and the characters "practical charging completed" on the fourth variable display portion 74b become visible. It should be noted that if a fan abnormality has been detected in the previous S470, the characters "fan abnormality" in the fifth variable display section 74c are also made visible.

In subsequent S630, the control circuit 26 checks the state of charge of the battery 8 via the state detection section 23 to determine whether or not full charging has been completed. If the control circuit 26 determines that full charging has been completed, the process proceeds to S640, and if it determines that full charging has not been completed, the control circuit 26 waits by repeating the process of S630. Note that when the full charge is completed, the battery charge control separately executed by the control circuit 26 also ends.

In S640, the control circuit 26 turns off the backlight (BL1) of the third variable display section 74a, turns on the backlight (BL2) of the fourth variable display section 74b in green, and ends the process. . As a result, the characters on the third variable display portion 74a become invisible, and the characters "FULL CHARGE COMPLETE" on the fourth variable display portion 74b become visible. It should be noted that in the above S470, when the fan abnormality is detected, in addition to the characters "fully charged", the characters "fan abnormality" on the fifth variable display section 74c are also visible. Become.

[4-6. terminology]
In the present embodiment, the housing of the charger 7 corresponds to an example of the housing in the present disclosure, the display panel 74 corresponds to an example of the display section in the present disclosure, and the control circuit 26 of the controller 75 that executes the state display process It corresponds to an example of a modified part in the present disclosure.

[4-7. effect]
According to the fourth embodiment described in detail above, the following effects are obtained.
(4a) In this embodiment, the display panel 74 is capable of different displays in the same area, so that the types of information that can be provided to the user can be increased. For example, since the state of the charger 7 classified more finely can be presented by characters, the state of the charger 7 can be notified to the user without misunderstanding.

[5. Fifth Embodiment]
[5-1. Differences from First Embodiment]
In the fifth embodiment, since the on-site equipment and the display contents on the display label used for explanation are different from the display contents on the operation panel of the first embodiment, these differences will be described below.

[5-2. Blower]
The blower 9 of the present embodiment is an example of on-site equipment mainly for performing blowing work such as cleaning while being held by a user's hand.

As shown in FIG. 20, the blower 9 has nozzles 91 . The nozzle 91 is a tubular member that determines the blowing direction of the wind.
The blower 9 has a housing 92 . The housing 92 serves as an exterior for the blower 9 and accommodates various interior components. The housing 92 is formed as an appropriate resin molding from the viewpoint of weight reduction for use as a hand-held type.

The blower 9 has a battery mounting portion 93 . The battery mounting portion 93 is provided in the lower portion of the housing 92 and detachably mounts first and second batteries 96 and 97 for supplying power to the motor and the controller 95 housed in the housing 92 .

Housing 92 includes a motor housing 921 . The motor housing 921 is a bottomed cylindrical housing in which a motor is housed. The motor housed in the motor housing 921 rotates the motor shaft with electric power supplied from the first and second batteries 96 and 97 mounted in the battery mounting portion 93 .

Housing 92 includes fan housing 923 . The fan housing 923 is provided at one axial end of the cylindrical motor housing 921 and accommodates a centrifugal fan attached to the rotating shaft. Outside air sucked from the motor housing 921 is led to the nozzle 91 and discharged.

Housing 92 includes grip housing 922 . The grip housing 922 is provided on the outer circumference of the motor housing 921 . Various operation switches are provided on the grip housing 922 . The grip housing 922 is shaped so that various operation switches can be operated while being held by the user.

The blower 9 has a label display portion 94 . The label display portion 94 is provided on the upper portion of the motor housing 921 on the side opposite to the fan housing 923 with the grip housing 922 interposed therebetween.

[5-3. Label display]
The label display section 94 has a sixth variable display section 94a on the display surface. Also, the label display section 94 has a seventh variable display section 94b on the display surface. The sixth and seventh variable display portions 94 a and 94 b are both horizontally long rectangular regions, and may be arranged vertically in the lower right corner of the label display portion 94 .

The label display portion 94 has a fixed display portion 94c on its display surface. The fixed display portion 94c is a portion of the label display portion 94 other than the sixth and seventh variable display portions 94a and 94b.
16th and 17th LEDs 942 to 943 that emit two colors of green and red are arranged at positions facing the sixth and seventh variable display portions 94a and 94b on the back side of the decorative film 941. be. Hereinafter, the light emitted from the sixteenth and seventeenth LEDs 942 and 943 to the sixth and seventh variable display portions 94a and 94b is referred to as backlight.

The specifications of the blower 9 may be printed on the surface of the decorative film 941 on which the fixed display portion 94c is located. The characters printed on the fixed display portion 94c are a display layer that is always visible regardless of whether the backlight is on.

On the surface of the decorative film 941 where the sixth variable display portion 94a is located, the characters "overload state" and "high temperature state" may be superimposed and printed. On the surface of the decorative film 941 on which the seventh variable display portion 94b is located, the characters "Battery level is low" and "Please charge" may be superimposed and printed.

Of the characters printed on the sixth and seventh variable display sections 94a and 94b, the characters "Overload" and "Please charge" are displayed on the back of the sixth and seventh variable display sections 94a and 94b. Visible when the light turns green, and when the backlight of the sixth and seventh variable display portions 94a, 94b turns red, and the backlight of the sixth and seventh variable display portions 94a, 94b. is a display layer that becomes invisible when is turned off.

Of the characters printed on the sixth and seventh variable display sections 94a and 94b, the characters "high temperature" and "low battery level" are the backlights of the sixth and seventh variable display sections 94a and 94b. becomes visible when is illuminated in red, and when the backlights of the sixth and seventh variable display portions 94a and 94b are illuminated in green, and when the backlights of the sixth and seventh variable display portions 94a and 94b are illuminated It is a display layer that becomes invisible when the light is turned off.

[5-4. controller]
Blower 9 includes a controller 95 within housing 92 .
A controller 95 controls the motor housed in the housing 92 and controls the label display section 94 . In the controller 95, the configuration related to the control of the label display section 94 is the same as the controller 21 shown in FIG. 4 except that the selection light driving section 25 is omitted.

However, the state detection unit 23 is configured to detect at least an error state such as a motor overload state and a high temperature state. The backlight drive unit 24 causes the 16th and 17th LEDs 942 and 943 to emit green or red light in accordance with instructions from the control circuit 26, thereby driving the backlights of the 6th and 7th variable display units 94a and 94b. Lights green or red.

[5-5. Error display processing]
The error display processing executed by the control circuit 26 of the controller 95 will be described with reference to the flowchart of FIG. 23 and the display example of FIG. 22 to 24, the backlight of the sixth variable display portion 94a is denoted as BL1, and the backlight of the seventh variable display portion 94b is denoted as BL2.

The error display process is started when the blower 9 is powered on and the controller 95 is activated. In the initial state immediately after the controller 95 is activated, the backlights (BL1, BL2) of the sixth and seventh variable display portions 94a, 94b are both extinguished.

When the process is started, in S710, the control circuit 26 determines whether or not an error is detected via the state detection unit 23. If it is detected, the process proceeds to S720. , S710 are repeated to wait.

In S720, the control circuit 26 determines whether or not the detected error is an overload condition, and if it is an overload condition, the process proceeds to S740, and if it is not an overload condition, the process proceeds to S730. . Whether or not the motor is in an overcurrent state is determined, for example, by detecting the driving current of the motor with the controller 95 and determining whether or not the detected driving current exceeds a preset threshold value.

In S730, the control circuit 26 determines whether or not the detected error is the high temperature state. If the high temperature state, the process proceeds to S760.

In S740, the control circuit 26 lights the backlight (BL1) of the sixth variable display section 94a in green. As a result, the characters "Overload" on the sixth variable display portion 94a become visible.

In subsequent S750, the control circuit 26 determines whether or not the overload state has been released based on the state detected via the state detection unit 23. If the overload state has been released, the process proceeds to S780, and the If not, it waits by repeating the process of S750.

In S760, the control circuit 26 lights the backlight (BL1) of the sixth variable display section 94a in red. As a result, the characters "high temperature" on the sixth variable display portion 94a become visible.

In subsequent S770, the control circuit 26 determines whether or not the high temperature state has been canceled based on the state detected via the state detection unit 23. If the high temperature state has been canceled, the process proceeds to S780. If not, it waits by repeating the process of S770.

In S780, the control circuit 26 turns off the backlight (BL1) of the sixth variable display section 94a and returns the process to S710.
[5-6. Battery status display process]
The battery status display process executed by the controller 95 will be described with reference to the flowchart of FIG. 24 and the display example of FIG.

Like the error display process, the battery status display process is started when the blower 9 is powered on and the controller 95 is activated.
When the process is started, in S810, the control circuit 26 determines whether or not the remaining battery level detected via the state detection unit 23 is less than 20%. , and if it is 20% or more, it waits by repeating the processing of S810.

At S820, the control circuit 26 determines whether or not the remaining battery charge detected via the state detection unit 23 is less than 3%. If so, the process proceeds to S840.

In S830, the control circuit 26 turns on the backlight (BL2) of the seventh variable display section 94b in green, and returns the process to S810. As a result, the characters "Please charge" on the seventh variable display portion 94b become visible.

In S840, the control circuit 26 lights the backlight (BL2) of the seventh variable display section 94b in red, and returns the process to S810. As a result, the characters "low battery level" on the seventh variable display portion 94b become visible.

[5-7. terminology]
In the present embodiment, the housing 92 corresponds to an example of the housing in the present disclosure, the label display section 94 corresponds to an example of the display section in the present disclosure, and a control circuit of the controller 95 that performs error display processing and battery state display processing. 26 corresponds to an example of a modified part in the present disclosure.

[5-8. effect]
According to the fifth embodiment described in detail above, the following effects are obtained.
(5a) In this embodiment, the label display section 94, which is a space for attaching a label indicating the specifications of the device, is used to notify the user of the operating state of the device. Therefore, there is no need to secure new space for the purpose of notifying the user of the device status. As a result, the presentation of information to the user can be enriched without changing the appearance of the device.

[6. Sixth Embodiment]
[6-1. Differences from the Fifth Embodiment]
The sixth embodiment is basically the same as the fifth embodiment, but differs in the configuration of the label display section 98 and the content of the processing performed for display control. These differences are described below.

[6-2. Label display]
As shown in FIG. 25, the entire display surface of the label display section 98 in this embodiment is used as an eighth variable display section 98a. Accordingly, an eighteenth LED 982 is arranged at a position facing the center of the label display portion 98 on the back side of the decorative film 981 . Hereinafter, the light emitted from the eighteenth LED 982 to the eighth variable display portion 98a is referred to as a backlight.

The specifications of the blower 9 are printed on the entire display surface of the decorative film 981 . The characters representing the specifications are display layers that become visible when the backlight of the eighth variable display section 98a is turned off, and become invisible when the backlight of the eighth variable display section 98a is turned on. However, the principle of the invisible state when the backlight is lit is the same as that described in the third embodiment.

On the display surface of the decorative film 981, arbitrary characters or patterns are superimposed and printed at arbitrary locations on the entire surface. As shown in FIG. 26, the arbitrary characters may be, for example, the name of the owner of the blower 9, the name of the company, or the like. The arbitrary pattern may be, for example, a favorite character or the like. Contrary to the characters representing the specifications, these characters or patterns become invisible when the backlight of the eighth variable display portion 98a is turned off, and become visible when the backlight of the eighth variable display portion 98a is turned on. It is a display layer.

[6-3. Label display switching process]
Label display switching processing executed by the controller 95 will be described with reference to the flowchart of FIG. 27 and the display example of FIG.

However, in the present embodiment, the state detected by the state detection unit 23 includes the ON/OFF state of the trigger switch that activates the tool.
The label display switching process is started when the blower 9 is powered on and the controller 95 is activated.

When the process is started, in S910, the control circuit 26 determines whether or not the trigger switch is turned on via the state detection section 23. If it is turned on, the process proceeds to S920. If so, the process proceeds to S930.

In S920, the control circuit 26 turns on the backlight of the eighth variable display section 98a and returns the process to S910.
In S930, the control circuit 26 turns off the backlight of the eighth variable display section 98a and returns the process to S910.

By the label display switching process, when the trigger switch is off, the specifications of the blower 9 are displayed on the label display unit 98, and only while the trigger switch is on, arbitrarily set characters and/or patterns are variably displayed. It is displayed on the portion 98a (that is, the entire surface of the label display portion 98).

[6-4. terminology]
In the present embodiment, the label display section 98 corresponds to an example of the display section in the present disclosure, and the control circuit 26 of the controller 95 that executes label display switching processing corresponds to an example of the change section in the present disclosure.

[6-5. effect]
According to the sixth embodiment described in detail above, in addition to the effects of the fifth embodiment (5a), the following effects are obtained.

(6a) In the present embodiment, the display of the label display section 98 when the backlight is on can be customized for each user, and user satisfaction can be improved.
[6-6. Modification]
In the sixth embodiment, the display content of the label display portion 94 is switched by operating the trigger switch, but the timing of switching the display content is not limited to the operation of the trigger switch. For example, the backlight may be configured to turn on when power is applied to the tool, and turn off when power to the tool is removed. Further, when the tool is provided with a label changeover switch, the display may be changed according to the operation of this label display changeover switch.

The timing at which the display of the variable display section 98a is switched in this way can be set in various ways.
[7. Other embodiments]
(7-1) In the above embodiments, as examples of on-site equipment to which the technology of the present disclosure is applied, an impact driver, a laser marking device, a chain saw, a charger, and a blower were exemplified. Devices are not limited to these. For example, it may be applied to various on-site electrical equipment used at work sites such as DIY, manufacturing, gardening, and construction. Specifically, the technology of the present disclosure may be applied to various electric working machines such as gardening work machines and devices for adjusting the environment of work sites. More specifically, for example, various electric working machines such as electric lawn mowers, electric lawn clippers, electric brush cutters, electric cleaners, electric trimmers, electric sprayers, electric spreaders, electric dust collectors, electric circular saws, and hammer drills. Disclosure may apply.

(7-2) In the above embodiments, LEDs are used as the light source of the backlight, but the light source of the backlight is not limited to LEDs, and for example, organic EL (Electro Luminescence) may be used. . Since the sheet-shaped organic EL can illuminate the decorative film more uniformly than the LED, which is a point light source, the visibility can be improved.

(7-3) A plurality of functions possessed by one component in the above embodiment may be realized by a plurality of components, or a function possessed by one component may be realized by a plurality of components. good too. Also, a plurality of functions possessed by a plurality of components may be realized by a single component, or a function realized by a plurality of components may be realized by a single component. Also, part of the configuration of the above embodiment may be omitted. Also, at least part of the configuration of the above embodiment may be added or replaced with respect to the configuration of the other above embodiment.

DESCRIPTION OF SYMBOLS 1... Impact driver, 2... Chainsaw, 3... Laser marking device, 5... Chainsaw, 7... Charger, 8... Battery, 9... Blower, 10... Tool body, 18, 34, 59... Operation panel, 18a, 34a Operation reception unit 18b, 34b, 74a to 74c, 94a to 94b, 98a Variable display unit 18c, 34c Selection display unit 21, 35, 61, 75, 95 Controller 23 State detection unit 24 Backlight driving unit 25 Selection light driving unit 26 Control circuit 32 Rotating unit 50 Tool body 59a Operation reception/display unit 74 Display panel 92 Housing 94, 98 Label display section 94c... fixed display section 181, 341, 591, 741, 941, 981... decorative film 182, 342, 592... capacitance sensor 183 to 187, 343 to 348, 593, 742 to 744, 942 to 943, 982... light-emitting diode, 261... CPU, 262... memory, 594... button switch.

Claims (16)

a housing configured to be exposed to the field environment;
a display unit provided in the housing and including a display surface on which a first display layer and a second display layer configured to change a visible state between an invisible state and a visible state are arranged;
The display on the display unit is changed by performing visualization control for causing a change from the invisible state to the visible state for the first display layer and/or the second display layer. a configured change unit;
field equipment. The field equipment of claim 1, comprising:
The first display layer and the second display layer include portions arranged to overlap each other,
Field equipment. The field equipment according to claim 1 or claim 2,
The visualization control turns on irradiation light emitted from the back side of the display surface,
The first display layer and/or the second display layer are changed from the invisible state to the visible state by transmitted light that is the irradiation light that is transmitted from the back side of the display surface to the display surface side. configured to occur
Field equipment. The field equipment according to claim 1 or claim 2,
The visualization control changes the color of the illumination light emitted from the back side of the display surface,
The first display layer and/or the second display layer are in the visible state and the invisible state due to the difference in color of the transmitted light, which is the irradiation light that is transmitted from the back side of the display surface to the display surface side. configured to cause a change between
Field equipment. A field device according to claim 4, comprising:
When the color of the transmitted light changes from a first color to a second color different from the first color, the first display layer changes from the visible state to the invisible state, and the second display layer: configured to change from the invisible state to the visible state;
Field equipment. A field device according to any one of claims 1 to 5,
further comprising a state detector configured to detect a device state of the field device;
Field equipment, wherein the changing unit is configured to perform the visualization control according to the equipment state detected by the state detection unit. A field device according to claim 6, comprising:
The field device, wherein the device state corresponds to an operational mode of the field device. A field device according to claim 6 or claim 7,
The field device, wherein the device state corresponds to the state of charge of a battery connected to the field device. A field device according to any one of claims 6 to 8,
The device state corresponds to a state generated by the operation of the field device. A field device according to any one of claims 6 to 9,
The field equipment, wherein the equipment status corresponds to whether or not a predetermined switch operation has been performed. A field device according to any one of claims 6 to 10,
The field device, wherein the device state corresponds to a state change that occurs at power up. A field device according to any one of claims 1 to 11,
An on-site device comprising an operation reception unit configured to receive an input operation on at least a part of the display surface. 13. The field equipment of claim 12, comprising:
The operation reception unit
a decorative film forming the display surface;
a capacitance sensor laminated on the back surface of the decorative film;
field equipment. 13. The field equipment of claim 12, comprising:
The operation reception unit
a decorative film forming the display surface;
A field device, comprising: a light-emitting element and a push button switch arranged on the back surface of the decorative film. A field device according to any one of claims 1 to 14,
The field equipment, wherein the first display layer and the second display layer display graphics and/or text. A first display layer and a second display layer configured to change the visually recognized state between an invisible state and a visible state are arranged on a display portion provided in a housing exposed to the field environment. and
changing the display on the display unit by performing visualization control to cause a change from the invisible state to the visible state on the first display layer and/or the second display layer; ,
A method of displaying field equipment, comprising:

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