WO2020071275A1 - Power equipment - Google Patents

Abstract

Provided is power equipment that improves operability of an operation member and improves seal performance. This power equipment, which has an equipment main body, a load unit provided on the equipment main body and supplied with power, and a power supply unit provided on the equipment main body and capable of supplying power to the load unit, comprises: an operation panel 51 that has a portion exposed to the exterior of the equipment main body; a mounting hole 61 that is provided in the operation panel 51 and that penetrates in a vertical direction to connect the exterior and the interior of the equipment main body; a lighting button 52 that is operated by an operator and that can move in the vertical direction in the mounting hole 61; and a lighting switch 68 that is provided on a vertical extension line of the mounting hole 61 and that outputs a signal corresponding to the operation of the lighting button 52 by the operator. The mounting hole 61 allows movement of the lighting button 52 in the direction toward the lighting switch 68 and limits the movement of the lighting button 52 in the direction away from the lighting switch 68.

Description

Electrical equipment

The present invention relates to an electric device including a device main body and a load to which power is supplied.

BACKGROUND ART Conventionally, an example of an electric device including a device main body and a load unit to which power is supplied is described in Patent Literature 1. The electric device described in Patent Literature 1 is a power tool. The power tool described in Patent Literature 1 includes a housing as a device main body, an electric motor as a load unit, a battery pack, a circuit board, a trigger lever, and a trigger switch. The housing has a hammer case, a handle, and a battery attachment. The electric motor is provided in the hammer case. The trigger and the trigger switch are provided on the handle. The battery pack is mounted on the battery mounting part. The circuit board is provided in the battery mounting portion. A control circuit is provided on the circuit board. The control circuit controls the rotation of the electric motor.

When an operation force is applied to the trigger and the trigger switch is turned on, the current of the battery pack is supplied to the electric motor, and the electric motor rotates. The operation panel is mounted on the circuit board. A part of the operation panel is exposed outside the battery mounting portion. A button-type switch is mounted on the circuit board. A button-type switch has a button. The button is an input button to the control circuit. The tip of the button is exposed outside the operation panel. A seal-like protection sheet is provided on the operation panel. The protection sheet covers the tip of the button. When the operator presses the protection sheet, the button is pressed.

JP 2016-221631 A

The inventor of the present application has recognized the first problem that the operator presses the button via the protection sheet, so that the operation range of the button is limited and the operability of the button is reduced.

In addition, the inventor of the present application has recognized the second problem that the sealability is reduced when the protective sheet is damaged.

A first object of the present invention is to provide an electric device capable of improving the operability of an operation member.

A second object of the present invention is to provide an electric device capable of improving sealing performance.

An electric device according to an embodiment includes a device body, a load unit provided in the device body, and supplied with power, and a power supply provided in the device body and capable of supplying power to the load unit. And a mounting hole penetrating in the vertical direction connecting the outside and the inside of the device body, an operating member operated by an operator, and movable in the vertical direction in the mounting hole, A signal output unit that is provided on the vertical extension line and outputs a signal according to the operation of the operation member by the operator, and an elastic body that is in contact with the operation member and surrounds the signal output unit. , Is configured.

In the electric device according to one embodiment, the operability of the operation member is improved, or the sealing property is improved.

It is a front sectional view showing the internal structure of the housing in the impact driver which is one embodiment of the present invention. It is a front sectional view showing the structure of the attachment part of the impact driver. FIG. 3 is a block diagram illustrating a control system of the impact driver. FIG. 3 is a plan view of an operation panel and a control circuit board included in the impact driver. FIG. 5 is a front sectional view taken along line VV in FIG. 4. FIG. 6 is a plan sectional view taken along line VI-VI in FIG. 5. FIG. 7 is a side sectional view taken along line VII-VII in FIG. 4. It is a perspective view which shows a lighting button and a remaining amount button comprehensively. It is sectional drawing which shows the structural example of a lighting button and a remaining amount button. 10 is a structural example of a lighting button and a remaining amount button, and is a cross-sectional view at a position different from FIG. It is sectional drawing which shows the other example which provided the operation panel in the attachment part. It is a perspective view of the example in which the housing was divided into the 1st component and the 2nd component.

Hereinafter, an embodiment of an electric device of the present invention will be described with reference to the drawings.

In the present embodiment, among several embodiments included in the electric device, an impact driver will be exemplified. The impact driver 10 shown in FIGS. 1 and 2 can rotate the tool support. The impact driver 10 can also apply a rotational impact to the tool support.

The impact driver 10 has a hollow housing 11. The housing 11 includes a motor case 12 and a handle 13 connected to the motor case 12. A hammer case 14 is fixed to the motor case 12. The mounting portion 15 is connected to the handle 13 at a location opposite to the motor case 12.

An electric motor 16 is provided in the motor case 12. The electric motor 16 includes a stator 20 and a rotor 21. The stator 20 is provided in the motor case 12 so as not to rotate. The rotor 21 includes an output shaft 22, a rotor core 23 fixed to the output shaft 22, and a plurality of permanent magnets 24 fixed to the rotor core 23. The rotor 21 is rotatably supported by a bearing 25. When power is supplied to the stator 20, a rotating magnetic field is formed, and the rotor 21 rotates about the axis A1.

The electric motor 16 is a brushless electric motor that does not use a brush through which current flows. When the direction of the current with respect to the stator 20 is switched, the rotation direction of the rotor 21 is switched.

The annular hammer case 14 has a shaft hole 26, and an anvil 28 rotatably supported by a cylindrical sleeve 27 is disposed in the shaft hole 26. Anvil 28 is a tool support. The anvil 28 is made of metal and is rotatable about the axis A1. The anvil 28 is provided from the inside of the hammer case 14 to the outside of the motor case 12. An operator attaches and detaches a driver bit 29 as a work tool to and from the anvil 28. In addition, a plurality of, for example, three projections 30 are provided on the outer peripheral surface of the anvil 28.

A speed reducer 31 is provided in the hammer case 14. The speed reducer 31 is disposed between the electric motor 16 and the anvil 28 in a direction along the axis A1. The speed reducer 31 is a power transmission device that transmits the rotational force of the electric motor 16 to the anvil 28, and the speed reducer 31 is configured by a single pinion type planetary gear mechanism.

A spindle 32 is provided in the hammer case 14. The spindle 32 is connected to an output element of the speed reducer 31. The spindle 32 rotates integrally about the axis A1. The spindle 32 and the anvil 28 are relatively rotatable.

Two cam grooves 33 are provided on the outer peripheral surface of the spindle 32. A hammer 34 is housed in the hammer case 14. The hammer 34 is annular. The hammer 34 is attached to the outer peripheral surface of the spindle 32. A cam groove 35 is formed on the inner peripheral surface of the hammer 34. The cam groove 33 and the cam groove 35 support a cam ball 87. The hammer 34 is operable with respect to the spindle 32 and the anvil 28 in the direction of the axis A1.

Further, a protrusion 36 is provided on the hammer 34. A plurality of, for example, three projections 36 are provided at equal angular intervals in the rotation direction of the hammer 34. A metal spring 37 is provided in the hammer case 14. The pressing force of the spring 37 is applied to the hammer 34, and the hammer 34 is urged to approach the anvil 28 in the direction of the axis A1.

Next, a control system of the impact driver 10 will be described with reference to FIGS. 1, 2, and 3. FIG. The battery pack 38 is attached to the attachment section 15. The mounting portion 15 has a device-side terminal, and the battery pack 38 has a battery-side terminal. When the battery pack 38 is mounted on the mounting portion 15, the device-side terminals and the battery-side terminals are electrically connected to each other.

When the operator slides the battery pack 38 in the left-right direction with respect to the mounting portion 15 in FIG. 2, that is, in the direction F <b> 1, the battery pack 38 is mounted on the mounting portion 15 and the battery pack 38 is removed from the mounting portion 15. , Is possible. The direction F1 is, for example, a direction along the axis A1 in FIG. The battery pack 38 is a DC power supply, and has a housing case 39 and a plurality of battery cells 40 housed in the housing case 39. The battery cell 40 is a secondary battery that can be charged and discharged. Note that the battery cell 40 may be a primary battery that can only discharge.

An inverter circuit board 41 is provided in the motor case 12. An inverter circuit 42 is provided on the inverter circuit board 41. The inverter circuit 42 forms a path for supplying the electric power of the battery pack 38 to the electric motor 16. The inverter circuit 42 includes a plurality of semiconductor switches. The plurality of semiconductor switches can be turned on and off independently.

The rotor position detection sensor 43 is provided on the inverter circuit board 41. The rotor position detection sensor 43 detects the position of the rotor 21 in the rotation direction and outputs a signal.

The trigger 44 and the trigger switch 45 are provided on the handle 13. The trigger switch 45 turns on when an operation force is applied to the trigger 44, and turns off when the operation force on the trigger 44 is released. The trigger switch 45 detects the operation amount of the trigger 44 and outputs a signal corresponding to the operation amount of the trigger 44.

The lighting unit 46 is provided on the housing 11. The lighting unit 46 is provided at a connection point between the motor case 12 and the handle 13 as an example, and a part of the lighting unit 46 is exposed outside the housing 11. The illumination unit 46 has a light emitting diode lamp as an example. The illumination unit 46 is turned on when power is supplied, and is turned off when the supply of power is stopped. The illuminating unit 46 illuminates the work location by the driver bit 29.

A remaining amount detection sensor 47 is provided in the mounting section 15. The remaining amount detection sensor 47 detects the remaining amount of the battery pack 38, that is, the voltage, and outputs a signal.

A holder 48 is provided in the inside B2 of the mounting portion 15, and the holder 48 supports a control circuit board 49. The control circuit board 49 is made of synthetic resin, for example. The control unit 50 shown in FIG. 3 is provided on the control circuit board 49. The control unit 50 is a microcomputer having an input / output interface, a central processing unit, and a storage device.

An operation panel 51 is provided on the mounting unit 15. The operation panel 51 is provided as a separate member from the mounting portion 15. The operation panel 51 is attached to the control circuit board 49. The mounting portion 15 has a mounting hole 84, and the operation panel 51 is provided over the inside B <b> 2 of the mounting portion 15 and the mounting hole 84. The mounting hole 84 penetrates the mounting portion 15 in the vertical direction in FIG. Note that the vertical direction in FIG. 2 can also be defined as the height direction in FIG. An example of the direction in which the mounting hole 84 penetrates the mounting portion 15 intersects with the direction along the axis A1 in FIG. A part of the operation panel 51 is exposed to the outside B1 of the mounting portion 15.

The upper end surface 102 of the illumination button 52 and the end surface 103 of the remaining amount button 53, which will be described later, are disposed below the upper end 84A in the vertical direction in FIG. In the vertical direction in FIG. 2, the upper end 84 </ b> A is located at the same position as the surface 100 of the mounting portion 15. In other words, the illumination button 52 and the remaining amount button 53 are located below the upper end of the mounting portion 15 forming the mounting hole 84. That is, the illumination button 52 and the remaining amount button 53 do not protrude from the surface 100 of the mounting portion 15. When the operator grips the handle 13, the operator's hand does not come into contact with the illumination button 52 and the remaining amount button 53, and the operability is improved.

As shown in FIG. 4, an illumination button 52, a remaining amount button 53, and a display window 54 are provided on the operation panel 51. The display window 54 is made of a translucent material, for example, a synthetic resin. The worker can visually check the illumination button 52, the remaining amount button 53, and the display window 54, respectively. The operator can apply an operating force to the illumination button 52 and the remaining amount button 53, that is, press the illumination button 52 and the remaining amount button 53 with a finger, respectively.

A mode switching button 55 shown in FIG. 3 is provided on the outer surface of the housing 11. The operator operates the mode switching button 55 to select any one of a plurality of modes, for example, a low speed mode, a medium speed mode, and a high speed mode. A mode changeover switch 56 is provided in the housing 11, and outputs a signal corresponding to the selected mode based on the operation of the mode changeover button 55.

The control unit 50 processes the signal of the trigger switch 45, the signal of the mode changeover switch 56, the signal of the remaining amount detection sensor 47, and the signal of the rotor position detection sensor 43. The control unit 50 sets a control range of the target rotation speed of the electric motor 16 according to the selected mode. In each mode, the control range of the target rotation speed of the electric motor 16 is different. The control unit 50 adjusts the rotation speed of the electric motor 16 according to the operation amount of the trigger 44 within the control range of the target rotation speed of the electric motor 16 corresponding to each mode. The control unit 50 processes the signals of the switches and the sensors, and controls the power supply state to the electric motor 16, for example, whether or not the power is supplied, the voltage, the current value, the direction of the current, and the like.

Next, a usage example of the impact driver 10 will be described. When the operator operates the mode switching button 55 to select a mode and applies an operating force to the trigger 44, the control unit 50 controls the inverter circuit 42, and the rotor 21 of the electric motor 16 rotates. The output shaft 22 rotates together with the rotor 21, and the torque of the output shaft 22 is transmitted to the spindle 32 via the speed reducer 31.

The rotational force of the spindle 32 is transmitted to the hammer 34 via the cam ball 87. Then, when the protrusion 36 and the protrusion 30 are engaged, the rotational force of the hammer 34 is transmitted to the anvil 28. The rotational force of the anvil 28 is transmitted to the screw member via the driver bit 29, and the screw member is tightened.

When the screw member is tightened and the rotational force required to rotate the anvil 28 increases, the hammer 34 operates in a direction away from the anvil 28, and the protrusion 36 gets over the protrusion 30. Then, the hammer 34 operates in a direction approaching the anvil 28, and the protrusion 36 of the hammer 34 collides with the protrusion 30 of the anvil 28. That is, a rotational force is applied to the anvil 28. Thereafter, while the rotor 21 is rotating, the above operation is repeated, and the tightening operation of the screw member by the impact driver 10 is continued.

The structure for attaching the control circuit board 49 to the holder 48 and the structure for attaching the operation panel 51 to the control circuit board 49 will be described with reference to FIGS. 4, 5, 6, and 7. FIG. The holder 48 has a tray shape, and a housing portion 57 is formed in the holder 48. The holder 48 is made of a synthetic resin, for example, polychlorinated biphenyl. The holder 48 is fixed to the mounting portion 15 using a fixing element such as a screw member.

The control circuit board 49 is disposed in the accommodation section 57, and the control circuit board 49 is fixed to the holder 48 using a screw member 58. The control circuit board 49 is made of a hard material, for example, a hard synthetic resin. With the control circuit board 49 fixed to the holder 48, the control circuit board 49 is substantially parallel to the axis A1.

The operation panel 51 is made of a hard material, for example, a hard synthetic resin. As the hard synthetic resin, a phenol resin, an epoxy resin, a melamine resin, or the like can be used in addition to polychlorinated biphenyl. The operation panel 51 has a top plate 59 and a wall portion 60 connected to the entire periphery of the top plate 59. The wall portion 60 is fixed to the holder 48 using a screw member 58. With the operation panel 51 fixed to the holder 48, the top board 59 is arranged substantially parallel to the control circuit board 49. The wall portion 60 is arranged to cross the control circuit board 49. A part of the wall part 60 is arranged in the accommodation part 57. With the operation panel 51 fixed to the holder 48, a space C1 is formed between the operation panel 51 and the control circuit board 49.

Two mounting holes 61 and 62 penetrating the top plate 59 in the thickness direction are provided. For this reason, the operation panel 51 has a frame shape. The two mounting holes 61 and 62 connect the outside B1 and the space C1. The display window 54 is arranged between the mounting holes 61 and 62.

The lighting button 52 is made of a hard material, for example, a hard synthetic resin. As the hard synthetic resin, a phenol resin, an epoxy resin, a melamine resin, or the like can be used in addition to polychlorinated biphenyl. The illumination button 52 has an operation section 63 and a leg section 64, and the leg section 64 is disposed over the mounting hole 61 and the space C1. The operation unit 63 is arranged on the outside B1 of the operation panel 51. The illumination button 52 is operable with respect to the operation panel 51 in the thickness direction of the control circuit board 49. The light button 52 is operable up and down in FIGS.

The leg portion 64 is formed in an annular shape over the entire circumference of the operation portion 63. A stopper 65 protruding from the outer peripheral surface of the leg portion 64 is provided. The stopper 65 is provided over the entire circumference of the annular leg portion 64. The stopper 65 is arranged in the space C1.

A protrusion 66 is provided at the tip of the leg 64. When the control circuit board 49 is viewed in a plan view as shown in FIG. 6, the protruding portion 66 is provided in an annular shape over the entire circumference of the annular leg portion 64.

A seal member 67 is arranged between the control circuit board 49 and the lighting button 52. The seal member 67 is made of an elastic body, for example, synthetic rubber, and is annular. When the control circuit board 49 is viewed in plan as shown in FIG. 6, the seal member 67 surrounds the protruding portion 66. The seal member 67 is fitted on the protrusion 66. The seal member 67 is disposed between the leg 64 and the control circuit board 49 in an elastically deformed state. The illumination button 52 is urged in a direction away from the surface of the control circuit board 49 by the elastic force of the seal member 67. When the stopper 65 is pressed against the top plate 59 by the urging force of the seal member 67, the illumination button 52 stops at the initial position with respect to the operation panel 51.

An accommodation room D1 is formed between the control circuit board 49 and the illumination button 52. The seal member 67 is pressed against the surface of the control circuit board 49 and the leg 64 to seal the accommodation room D1. An illumination switch 68 is arranged in the accommodation room D1. The illumination switch 68 is attached to the control circuit board 49. When the operator operates the lighting button 52 and the lower surface of the lighting button 52 is pressed against the lighting switch 68 and the lighting switch 68 is turned on, power is supplied from the battery pack 38 to the lighting unit 46, and the lighting unit 46 is turned on. . When the operator operates the illumination button 52 to turn off the illumination switch 68, the supply of power to the illumination unit 46 is stopped, and the illumination unit 46 is turned off.

The remaining amount button 53 is made of a hard material, for example, a hard synthetic resin. As the hard synthetic resin, a phenol resin, an epoxy resin, a melamine resin, or the like can be used in addition to polychlorinated biphenyl. The remaining amount button 53 has an operation part 69 and a leg part 70, and the leg part 70 is arranged over the mounting hole 62 and the space C1. The operation unit 69 is arranged on the outside B1 of the operation panel 51. The remaining amount button 53 is movable in the thickness direction of the control circuit board 49 with respect to the operation panel 51. The remaining amount button 53 can be moved up and down in FIGS. 5 and 7.

The leg 70 is formed in an annular shape over the entire circumference of the operation unit 69. A stopper 71 protruding from the outer peripheral surface of the leg 70 is provided. The stopper 71 is provided over the entire circumference of the annular leg 70. The stopper 71 is arranged in the space C1.

A protrusion 72 is provided at the tip of the leg 70. When the control circuit board 49 is viewed in a plan view as shown in FIG. 6, the protruding portion 72 is provided in an annular shape over the entire circumference of the annular leg portion 70.

A seal member 73 is arranged between the control circuit board 49 and the remaining amount button 53. The seal member 73 is made of an elastic body, for example, synthetic rubber, and is annular. As shown in FIG. 6, when the control circuit board 49 is viewed in a plan view, the seal member 73 is arranged so as to surround the protruding portion 72. The seal member 73 is fitted to the protrusion 72. The seal member 73 is disposed between the leg 70 and the control circuit board 49 in an elastically deformed state. The remaining amount button 53 is urged by the elastic force of the seal member 73 in a direction away from the surface of the control circuit board 49. When the stopper 71 is pressed against the top plate 59 by the urging force of the seal member 73, the remaining amount button 53 stops at the initial position with respect to the operation panel 51.

An accommodation room D2 is formed between the control circuit board 49 and the remaining amount button 53. The seal member 73 is pressed against the surface of the control circuit board 49 and the leg 70 to seal the accommodation room D2. The remaining amount switch 74 is disposed in the accommodation room D2. The remaining amount switch 74 turns on when receiving an external force, and turns off when the external force is released. As the remaining amount switch 74, a tactile switch can be used as an example.

As an example, the illumination switch 68 is arranged in a substantially vertical plane where the mounting hole 61 intersects the direction penetrating the mounting portion 15 and in the area where the mounting hole 61 is arranged. The arrangement region of the mounting hole 61 is indicated by two extended lines G1 for convenience in FIG. The two extended lines G1 are straight lines along the up-down direction in FIG. And the illumination switch 68 is arrange | positioned between two extension lines G1.

As an example, the remaining amount switch 74 is disposed in a placement area of the mounting hole 62 in a substantially vertical plane in which the mounting hole 62 intersects the direction penetrating the mounting portion 15. The arrangement region of the mounting hole 62 is indicated by two extended lines G1 in FIG. 10 for convenience. The two extended lines G1 are straight lines along the up-down direction in FIG. The remaining amount switch 74 is disposed between the two extension lines G1.

As shown in FIGS. 6 and 7, a remaining amount lamp 75 is provided in the storage unit 57. The remaining amount lamp 75 is arranged between the control circuit board 49 and the display window 54. An annular seal member 86 is provided in the space C <b> 1, and the seal member 86 surrounds the remaining amount lamp 75. The seal member 86 is in contact with the control circuit board 49 and the operation panel 51 to form a seal surface. As the remaining amount lamp 75, for example, a light emitting diode lamp can be used. The remaining amount lamp 75 is connected to the battery pack 38 via the remaining amount switch 74. When an operation force is applied to the remaining amount button 53, the lower surface of the remaining amount button 53 is pressed against the remaining amount switch 74, and when the remaining amount switch 74 is turned on, the remaining amount lamp 75 is turned on. When the operation force is released from the remaining amount button 53 and the external force is released from the remaining amount switch 74 and the power is turned off, the remaining amount lamp 75 is turned off.

The seal member 67 is provided between the illumination button 52 and the control circuit board 49, and the seal member 73 is provided between the remaining amount button 53 and the control circuit board 49. Then, when the operator presses the lighting button 52 with a finger, the operating force is applied to the lighting switch 68 without passing through the seal member 67. When the operator presses the remaining amount button 53 with a finger, the operating force is applied to the remaining amount switch 74 without passing through the seal member 73. Therefore, operability is good.

Further, the sealing member 67 is not interposed between the lighting button 52 and the lighting switch 68. In the vertical direction in FIG. 5, the increase in the thickness occupied by the seal member 67, the lighting button 52, and the lighting switch 68 can be suppressed. The vertical direction in FIG. 5 is almost the same as the height direction in FIG. Further, the seal member 73 is not interposed between the remaining amount button 53 and the remaining amount switch 74. An increase in the thickness occupied by the seal member 73, the remaining amount button 53, and the remaining amount switch 74 can be suppressed. Therefore, the illumination button 52 and the remaining amount button 53 do not protrude from the surface 100 of the mounting portion 15. Therefore, when the operator grips the handle 13 shown in FIG. 2 with his / her hand, the worker's hand can be prevented from touching the lighting button 52 or the remaining amount button 53, and the operability is improved.

As shown in FIG. 5, the filler E1 is filled over the accommodation portion 57 and the space C1. In the manufacturing process of the impact driver 10, the control circuit board 49 is fixed to the holder 48, and the sealing members 67 and 73, the illumination button 52 and the remaining amount button 53 are attached to the control circuit board 49 by the operation panel 51. Then, the housing portion 57 is filled with the filler E1. The periphery of the control circuit board 49 is covered with the filler E1.

The filler E1 has water resistance, heat resistance, and insulation. The filler E1 is urethane as an example. In the height direction in FIG. 5, the upper end of the filler E1 on the upper surface of the control circuit board 49 is at a position lower than the upper ends of the seal members 67 and 73. In other words, some of the seal members 67 and 73 project above the upper surface 101 of the filler E1 in the height direction in FIG.

Thereby, in the manufacturing process of the impact driver 10, the filler E1 can be prevented from entering the accommodation room D1. When the operator operates the lighting button 52 and the lighting button 52 comes into contact with the lighting switch 68 and stops, the contact point between the lighting button 52 and the sealing member 67 is higher than the filler E1. To position. Further, when the worker operates the remaining amount button 53 and the remaining amount button 53 contacts the remaining amount switch 74 and stops, the contact point between the remaining amount button 53 and the sealing member 73 is the filling material E1. It is located above. Therefore, it is possible to prevent the lighting button 52 or the remaining amount button 53 from touching the filler E1. Therefore, the operability of the illumination button 52 or the remaining amount button 53 is good.

The operation of the lighting button 52 will be described. When the operator releases the operation force on the lighting button 52, the lighting button 52 is urged by the seal member 67, and the stopper 65 is pressed against the top plate 59. That is, the illumination button 52 is stopped at the initial position. The operation panel 51 restricts the movement of the lighting button 52 in a direction away from the lighting switch 68 by stopping the lighting button 52 at the initial position. Since the stopper 65 is pressed against the top plate 59, it is possible to prevent foreign matter, for example, dust, on the outside B 1 of the operation panel 51 from entering the space C 1 through the mounting hole 61.

When the operator applies an operating force to the illumination button 52, the seal member 67 is elastically deformed. Therefore, the illumination button 52 approaches the control circuit board 49 in the thickness direction of the control circuit board 49. Then, the operation unit 63 is pressed against the illumination switch 68. In addition, the stopper 65 is separated from the top plate 59, and the outside B1 is connected to the space C1 via the mounting hole 61. The seal member 67 separates the space C1 from the accommodation room D1, and can prevent foreign matters in the space C1 from entering the accommodation room D1.

When the operator releases the operating force on the lighting button 52, the lighting button 52 is separated from the control circuit board 49 by the elastic force of the seal member 67. Then, the stopper 65 is pressed against the top plate 59, and the illumination button 52 stops at the initial position.

A part of the lighting button 52 is movable in the mounting hole 61, and the whole of the lighting button 52 is movable in the thickness direction of the control circuit board 49. In addition, all of the lighting buttons 52 do not undergo elastic deformation during the movement, the legs 64 of the lighting buttons 52 move in the mounting holes 61, and the lighting switches 68 are switched on and off by receiving an external force. Therefore, the operating resistance of the lighting button 52 is small, and the operability of the lighting button 52 is improved.

In addition, since all of the lighting buttons 52 are not elastically deformed in the process of moving, damage or deformation of the lighting buttons 52 can be suppressed. Therefore, in a state where the stopper 65 is pressed against the top plate 59 and the illumination button 52 is stopped at the initial position, it is possible to suppress the foreign matter of the external B1 from entering the space C1, and to provide a sealing property, for example, a dustproof property. Waterproofness can be secured.

Further, in the stopper 65, the shape of the portion pressed against the top plate 59 can be as shown in FIG. 9 or FIG. In the stopper 65 shown in FIG. 9, the contact surface 76 pressed against the top plate 59 is parallel to the inner surface 77 of the top plate 59.

In the stopper 71 shown in FIG. 10, the contact surface 78 pressed against the top plate 59 is inclined with respect to the inner surface 77 of the top plate 59. The top plate 59 has an annular contact surface 79 facing the mounting hole 61. The contact surface 79 is inclined with respect to the inner surface 77 of the top plate 59. The contact surface 78 and the contact surface 79 are parallel. The contact surface 78 is inclined so as to be closer to the control circuit board 49 as being outside the stopper 65.

Then, the contact surface 78 is pressed against the contact surface 79, and the illumination button 52 stops at the initial position. When the lighting button 52 operates in a direction approaching the control circuit board 49, the foreign matter between the lighting button 52 and the inner surface of the mounting hole 61 moves along the contact surface 78 by gravity, and the foreign matter enters the space C1. . Therefore, it is possible to suppress the foreign matter from remaining between the contact surface 78 and the contact surface 79.

The operation of the remaining amount button 53 will be described. When the operator releases the operation force on the remaining amount button 53, the remaining amount button 53 is urged by the seal member 73, and the stopper 71 is pressed against the top plate 59. That is, the remaining amount button 53 is stopped at the initial position. By stopping the remaining amount button 53 at the initial position, the operation panel 51 restricts the movement of the remaining amount button 53 in a direction away from the remaining amount switch 74. Since the stopper 71 is pressed against the top plate 59, it is possible to prevent foreign matter, for example, dust from the outside B1 from entering the space C1 from the mounting hole 62.

When the operator applies an operation force to the remaining amount button 53, the seal member 73 is elastically deformed. Therefore, the remaining amount button 53 approaches the control circuit board 49 in the thickness direction of the control circuit board 49. Then, the operation unit 69 is pressed against the remaining amount switch 74. Since the stopper 71 is separated from the top plate 59, the outside B1 is connected to the space C1 via the mounting hole 62. Since the seal member 73 is separated from the space C1 and the accommodation room D2, it is possible to prevent foreign matters in the space C1 from entering the accommodation room D2.

When the operator releases the operation force on the remaining amount button 53, the remaining amount button 53 is separated from the control circuit board 49 by the elastic force of the seal member 73. The stopper 71 is pressed against the top plate 59, and the remaining amount button 53 stops at the initial position.

A part of the remaining amount button 53 is movable within the mounting hole 62. All of the remaining amount buttons 53 move in the thickness direction of the control circuit board 49. All of the remaining amount buttons 53 are not elastically deformed in the process of moving, and the leg portion 70 can move on and off the mounting hole 62 so that the remaining amount switch 74 can be switched on and off. Therefore, the operation resistance of the remaining amount button 53 is small, and the operability of the remaining amount button 53 is improved.

In addition, since all of the remaining amount buttons 53 do not elastically deform in the process of moving, damage or deformation of the remaining amount buttons 53 can be suppressed. Accordingly, in a state where the stopper 71 is pressed against the top plate 59 and the remaining amount button 53 is stopped at the initial position, it is possible to suppress the foreign matter of the external B1 from entering the space C1, and to provide a sealing property, for example, a dustproof property. Waterproofness can be secured.

Further, in the stopper 71, the shape of the portion pressed against the top plate 59 can be as shown in FIG. 9 or FIG. In the stopper 71 shown in FIG. 9, the contact surface 80 pressed against the top plate 59 is parallel to the inner surface 77 of the top plate 59.

In the stopper 71 shown in FIG. 10, the contact surface 82 pressed against the top plate 59 is inclined with respect to the inner surface 77 of the top plate 59. The top plate 59 has an annular contact surface 81 facing the mounting hole 62. The contact surface 81 is inclined with respect to the inner surface 77 of the top plate 59. The contact surface 82 and the contact surface 81 are parallel. The contact surface 82 is inclined so as to be closer to the control circuit board 49 as being outside the stopper 71.

When the contact surface 82 is pressed against the contact surface 81, the remaining amount button 53 stops at the initial position. When the remaining amount button 53 is operated in a direction approaching the control circuit board 49, the foreign matter between the remaining amount button 53 and the inner surface of the mounting hole 62 moves along the contact surface 82 by gravity, and the foreign matter enters the space C1. enter in. Therefore, it is possible to suppress the foreign matter from staying between the contact surface 82 and the contact surface 81.

FIG. 11 is a cross-sectional view showing another example of a structure in which the operation panel 51 is provided on the mounting portion 15, and FIG. The housing 11 of the impact driver 10 shown in FIGS. 1 and 2 is divided into a first component piece 11A and a second component piece 11B with a dividing line passing through the motor case 12, the handle 13 and the mounting portion 15 therebetween. In a state where the impact driver 10 shown in FIGS. 1 and 2 is assembled, the first component piece 11A and the second component piece 11B are fixed to each other by a screw member as a fixing element.

The attachment section 15 has a first block 15A and a second block 15B. The mounting hole 84 is formed over the first block 15A and the second block 15B. In the first block 15A and the second block 15B, mounting grooves 83 are provided on the inner surfaces where the mounting holes 84 are formed.

The wall 60 of the operation panel 51 has an engaging portion 85. With the first block 15A and the second block 15B fixed to each other, the engaging portion 85 is located in the mounting groove 83. The engagement portion 85 is engaged with the first block 15A and the second block 15B, and the operation panel 51 is sandwiched between the first block 15A and the second block 15B. Positioning is fixed.

Other structures in FIGS. 11 and 12 are the same as the structures in FIGS. 1, 2, 4, 5, 5, 6, 7, 8, 9, and 10. 11 and 12, the same effects as those of the structures shown in FIGS. 1, 2, 4, 5, 6, 7, 8, 9, and 10 can be obtained. .

An example of the meaning of the items described in the present embodiment is as follows. The housing 11 is an example of a device main body. The impact driver 10 is an example of an electric device. The attachment unit 15 is an example of a power supply unit. The lighting switch 68 and the remaining amount switch 74 are examples of a signal output unit. The operation panel 51 is an example of an exterior unit. The inside B2 of the attachment section 15 is an example of the inside of the device main body. The external part B1 of the mounting part 15 is an example of the external part of the device body. The mounting holes 61 and 62 are examples of mounting holes. The illumination button 52 and the remaining amount button 53 are examples of an operation member.

The control circuit board 49 is an example of a support member. The accommodation rooms D1 and D2 are examples of an accommodation room. The seal members 67 and 73 are examples of a seal member. The stoppers 65 and 71 are examples of a stopper. The first component piece 11A is an example of a first component piece. The second component piece 11B is an example of a second component piece. The electric motor 16 is an example of a load unit and an electric motor. Battery pack 38 is an example of a battery pack. The control unit 50 is an example of a motor control unit and an illumination control unit. The lighting unit 46 is an example of a load unit and a lighting unit. The attachment section 15 is an example of an attachment section.

This embodiment discloses an electric device having the following configuration. An electrical device having a device body, a load unit provided on the device body, and supplied with power, and a power supply unit provided on the device body and capable of supplying power to the load unit. There is provided an exterior part partially exposed to the outside of the device main body, and a mounting hole provided on the exterior part and connecting the outside and the inside of the device main body, and an operator is provided. An operating member that is operated and movable within the mounting hole, and in a plane intersecting the direction in which the mounting hole penetrates the exterior part, within a placement area of the mounting hole, A signal output unit that outputs a signal corresponding to the operation of the operation member is provided; the operation panel allows the operation member to move in a direction toward the signal output unit; Move away from signal output It is configured to regulate moving of the direction.

It is needless to say that the electric device is not limited to the above embodiment, but can be variously changed without departing from the gist of the electric device. For example, when providing the mode switching button 55 and the mode switching switch 56 in the housing, the same configuration as the configuration of the illumination button 52, the operation panel 51, the illumination switch 68, the seal member 67, and the like can be adopted.

Some embodiments included in the electric apparatus are electric working machines that operate a tool support or a tool with the rotational force of an electric motor. The electric working machine includes, for example, an impact driver, an impact drill, a driving machine, a hammer, a hammer drill, a hammer driver, a grinder, a chain saw, a saver saw, a brush cutter, and the like.

Further, some embodiments included in electrical equipment are, for example, compressors, blowers, and cleaners driven by electric motors. By operating the operation member, it is possible to control, change, and adjust the rotation, stop, rotation direction, rotation speed, and the like of the electric motor. Further, by operating the operation member, it is possible to switch on and off the display unit that displays the voltage of the power supply.

Further, the electric device includes a lighting device having a lighting unit that is turned on and off by the power of a power supply. The lighting device may be a combination of a lighting unit and a working machine, or a lighting device provided alone without combining the working unit with the working machine.

The power supply unit includes a unit that supplies the power of the DC power supply to the load unit and a unit that supplies the power of the AC power supply to the load unit. In this case, the power supply unit has a power cable or an adapter connected to the AC power supply.

The control unit may be a single electric component or an electronic component, or may be a unit having a plurality of electric components or a plurality of electronic components. Electrical or electronic components include processors, control circuits, and modules.

Further, a part of the device body may also serve as the exterior part. That is, the device body and the exterior part may be the same member.

DESCRIPTION OF SYMBOLS 10 ... Impact driver, 11 ... Housing, 11A ... 1st structural piece, 11B ... 2nd structural piece, 15 ... Mounting part, 16 ... Electric motor, 38 ... Battery pack, 46 ... Lighting part, 49 ... Control circuit board, 50 ... Control unit, 51 ... Operation panel, 52 ... Lighting button, 53 ... Remaining button, 61,62 ... Mounting hole, 65,71 ... Stopper, 67,73 ... Seal member, 68 ... Lighting switch, 74 ... Remaining switch , B2 ... inside, B1 ... outside, D1, D2 ... accommodation room

Claims (15)

The device itself,
A load unit provided on the device main body and supplied with electric power,
A power supply unit provided in the device main body, and capable of supplying power to the load unit,
A mounting hole vertically penetrating between the outside and the inside of the device body,
An operating member operated by an operator, and at least a part of which is located in the mounting hole and movable in the vertical direction,
A signal output unit that is provided on the vertical extension line of the mounting hole, and that outputs a signal according to the operation of the operation member by the operator;
An elastic body that is in contact with the operation member and surrounds the signal output unit. The signal output unit is provided below the operation member in the up-down direction,
The electric device according to claim 1, wherein the signal is output when the operation member is operated and the lower surface of the operation member contacts the signal output unit. The signal output unit is provided on a substrate,
The electric device according to claim 1, wherein the elastic body is arranged such that an upper surface is in contact with the operation member and a lower surface is in contact with the substrate. 4. The electric device according to claim 1, wherein the operation member is urged by the elastic body in a direction away from the signal output unit. 5. 2. The mounting hole is configured to allow movement of the operation member in a direction toward the signal output unit and restrict movement of the operation member in a direction away from the signal output unit. 3. The electrical device according to any one of claims 4 to 4. The electric device according to claim 1, wherein the elastic body is positioned by being fitted with the operation member. A part has an exterior body that is exposed to the outside of the device body,
The electric device according to claim 1, wherein the attachment hole is provided in the exterior body. A support member provided on the device main body, and supporting the signal output unit,
A storage chamber formed between the operation member and the support member, and in which the signal output unit is disposed;
The electric device according to any one of claims 1 to 7, further comprising a seal member provided between the operation member and the support member, the seal member sealing the storage chamber. The support member is covered with an insulating filler,
The electrical device according to claim 1, wherein the seal member protrudes from an upper surface of the filler. The electric device according to any one of claims 1 to 9, wherein an upper end surface of the operation member is configured to be positioned lower than an upper open end of the mounting hole. The electric device according to claim 9, wherein the elastic body is the seal member. The operation member has a stopper,
The elastic body is made of synthetic rubber,
The operation member according to any one of claims 7 to 11, wherein the operation member is stopped at an initial position by the operation member being urged by the elastic force of the elastic body and the stopper being pressed against the exterior portion. Electrical equipment. The exterior part is attached to any one of the device main body, the substrate, or the support member, or is sandwiched between a first component piece and a second component piece constituting the device main body. The electric device according to claim 8. The load unit is an electric motor that rotates when power is supplied,
A motor control unit that controls power supplied from the power supply unit to the electric motor is further provided,
The motor control unit according to any one of claims 1 to 13, wherein the motor control unit controls a power supplied from the power supply unit to the electric motor by processing a signal output from the signal output unit. Electrical equipment. The power supply unit is a mounting unit provided in the device body,
The electric device according to any one of claims 1 to 14, wherein the attachment unit allows a battery pack to be attached and detached.

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