WO2023223605A1 - Dust removal device - Google Patents

Abstract

This dust removal device comprises: a placement part; a joint part that is provided to the placement part and that, in conjunction with a placement action whereby an electric power tool is placed on the placement part, establishes connection between a first dust collection part of a dust collector and a second dust collection part in which dust generated from the electric power tool is collected; and a suction part that is provided to the dust collector and that starts, triggered by the placement action, suctioning so as to transfer dust from the second dust collection part to the first dust collection part.

Description

dust removal device

The technology disclosed in this specification relates to a dust removal device.

In the technical field related to dust removal devices, a dust collector that operates in conjunction with a circular saw, as disclosed in Patent Document 1, is known.

JP 2019-119037 Publication

In Patent Document 1, the blade case of a circular saw and the suction port of a dust collector are connected via a hose. A worker operates a circular saw to perform cutting work to cut a workpiece. By operating the dust collector in conjunction with the cutting operation, dust (dust) generated from the workpiece during the cutting operation is sucked into the dust collector. If the circular saw and the dust collector are connected via a hose during cutting work, the hose may get in the way and the workability of the cutting work may be reduced.

The technology disclosed in this specification aims to suppress a decrease in workability.

This specification discloses a dust removal device. The dust removal device may include a mounting section, a joint section disposed on the mounting section, and a suction section disposed on the dust collector. The joint part connects the first dust collecting part of the dust collector and the second dust collecting part that collects dust generated from the power tool in conjunction with the placing operation in which the power tool is placed on the placing part. Good too. The suction unit may start a suction operation using the placement operation as a trigger so that dust is transferred from the second dust collection unit to the first dust collection unit.

According to the present disclosure, a decrease in workability is suppressed.

FIG. 1 is a perspective view from the front showing a power tool according to a first embodiment. FIG. 2 is a perspective view from the rear showing the power tool according to the first embodiment. FIG. 3 is a perspective view from the rear showing the dust collector according to the first embodiment. FIG. 4 is a schematic diagram showing a cutting operation according to the first embodiment. FIG. 5 is a perspective view from the front showing a state in which the power tool is placed on the placing device according to the first embodiment. FIG. 6 is a side view from the right showing a state in which the power tool is placed on the placing device according to the first embodiment. FIG. 7 is a side view from the right showing a state in which the power tool is placed on the placing device according to the second embodiment. FIG. 8 is a perspective view from the front showing a state in which a power tool is placed on the placing device according to the third embodiment. FIG. 9 is a side view from the right showing a state in which the power tool is placed on the placing device according to the third embodiment. FIG. 10 is a block diagram showing a mounting device according to a third embodiment. FIG. 11 is a perspective view from the rear showing the mounting device according to the fourth embodiment. FIG. 12 is a side view from the right side showing a state in which the power tool is placed on the placing device according to the fourth embodiment. FIG. 13 is a block diagram showing a mounting device according to a fourth embodiment. FIG. 14 is a perspective view from the front showing the power tool according to the fifth embodiment. FIG. 15 is a perspective view from the rear showing the power tool according to the fifth embodiment. FIG. 16 is a side view from the right side showing a state in which a power tool is placed on the placing device according to the fifth embodiment. FIG. 17 is a schematic diagram showing a cutting operation according to the sixth embodiment.

In one or more embodiments, the dust removal device may include a mounting section, a joint section disposed on the mounting section, and a suction section disposed on the dust collector. The joint part connects the first dust collecting part of the dust collector and the second dust collecting part that collects dust generated from the power tool in conjunction with the placing operation in which the power tool is placed on the placing part. Good too. The suction unit may start a suction operation using the placement operation as a trigger so that dust is transferred from the second dust collection unit to the first dust collection unit.

In the above configuration, dust generated from the workpiece during the cutting operation is collected in the second dust collecting section. There is no need to connect the power tool and the dust collector via the dust collection hose during cutting work. Since the electric tool and the dust collector are not connected through the dust collection hose during the cutting operation, a decrease in the workability of the cutting operation is suppressed. The second dust collecting section may be a component of the power tool or an accessory of the power tool. When interrupting or finishing the cutting operation, the operator places the power tool on the mounting section. The first dust collecting section and the second dust collecting section of the dust collector are connected in conjunction with the placing operation in which the electric tool is placed on the placing section. Using the placement operation as a trigger, the suction section of the dust collector starts a suction operation. As a result, dust is transferred from the second dust collection section to the first dust collection section, and the dust in the second dust collection section is collected into the first dust collection section. Dust is removed from the second dust collecting section. The suction operation may be started when the power tool is placed on the placement section, or may be started after a predetermined period of time has elapsed from the time the power tool was placed on the placement section. Furthermore, if the dust collector is provided with an input section that is operated to switch between starting and stopping the suction operation, the suction operation may be started by operating the input section in conjunction with the placing operation. . When a placement sensor that detects that the power tool is placed on the placement section is provided, the suction operation starts when the placement sensor detects that the power tool is placed on the placement section. may be done. When a connection sensor that detects that the first dust collection section and the second dust collection section are connected is provided, the connection sensor detects that the first dust collection section and the second dust collection section are connected. The suction operation may be started by this.

In one or more embodiments, the power tool may include a second dust collection section.

In the above configuration, dust generated from the power tool is collected in the second dust collecting section, which is a component of the power tool.

In one or more embodiments, the suction operation may be stopped after the suction operation is performed while the power tool is placed on the placement portion.

In the above configuration, by stopping the suction operation at a predetermined timing, the dust collector is prevented from continuing to operate unnecessarily.

In one or more embodiments, the suction operation may be stopped while the power tool is placed on the placement part.

In the above configuration, by stopping the suction operation at a predetermined timing while the electric tool is placed on the placing portion, it is possible to prevent the dust collector from continuing to operate unnecessarily. For example, the suction operation may be stopped after the suction operation is performed for a certain period of time after the power tool is placed on the placement section. The suction operation may be stopped after all the dust in the second dust collection section is transferred to the first dust collection section. The suction operation may be performed intermittently a plurality of times while the power tool is placed on the placement portion.

In one or more embodiments, the suction operation may be stopped using a lift operation in which the power tool leaves the mounting portion as a trigger.

In the above configuration, the suction operation is stopped using the lift operation as a trigger, thereby suppressing the dust collector from continuing to operate unnecessarily. When restarting the cutting operation, the operator lifts the power tool from the mounting section. The connection between the first dust collection section and the second dust collection section is released in conjunction with the lift operation in which the power tool is moved away from the mounting section. The suction operation is stopped using the lift operation as a trigger. The suction operation may be stopped when the power tool leaves the mounting part, or may be stopped after a predetermined period of time has elapsed from the time the power tool leaves the mounting part.

In one or more embodiments, the platform may be supported by a dust collector.

With the above configuration, the operator can place the power tool on the placing section supported by the dust collector.

In one or more embodiments, the mounting part may be removable from the dust collector.

With the above configuration, the operator can install the mounting section at any position. Thereby, the operator can smoothly place the power tool on the placing section. The mounting section may be installed on the dust collector, or may be installed on the floor or workbench.

In one or more embodiments, the loading operation may be performed while the loading section is removed from the dust collector.

With the above configuration, the operator can install the mounting section at any position other than the dust collector. Thereby, the operator can smoothly place the power tool on the placing section. The mounting section may be installed on the floor or a workbench.

With the above configuration, the worker can arrange the mounting section at an arbitrary height according to, for example, the height of the worker or the height of the workbench. Thereby, the operator can smoothly place the power tool on the placing section.

In one or more embodiments, the dust collector may include a receiver.

With the above configuration, the operator can place the power tool on the mounting section, which is a component of the dust collector.

In one or more embodiments, the dust removal device may include a cap part connected to the second dust collection part and having a passage through which dust passes. The joint part may be connected to the cap part.

In the above configuration, the joint part and the second dust collection part are connected through the cap part.

In one or more embodiments, the cap portion may be connected to the second dust collection portion via a retractable hose.

With the above configuration, the operator can smoothly change the relative position of the cap part and the second dust collecting part.

In one or more embodiments, the dust removal device may include an on-off valve that opens and closes the passage in the cap portion. The passage may be closed by the on-off valve when the power tool is not placed on the placement part. The passage may be opened while the power tool is placed on the placement part.

In the above configuration, since the passage is closed by the on-off valve when the power tool is not placed on the placing part, the dust in the second dust collection part is prevented from spilling to the outside of the second dust collection part through the passage. suppressed. Since the passage is opened in a state in which the power tool is placed on the placement section, dust is transferred from the second dust collection section to the first dust collection section. When the power tool is placed on the placement part, the passage may be opened by moving the on-off valve due to contact with the joint part. After the power tool is placed on the placement part, the passage may be opened by moving the on-off valve by the suction force of the dust collector.

In one or more embodiments, the dust collector may have a suction port connected to the first dust collection section. The dust removal device may include a dust collection hose that connects the suction port and the joint portion. The dust transferred from the second dust collection section to the first dust collection section may pass through the dust collection hose.

In the above configuration, the first dust collection section and the second dust collection section are connected via the joint section and the dust collection hose. Dust in the second dust collection section is transferred to the first dust collection section via the joint section and the dust collection hose.

In one or more embodiments, the dust removal device may include an input that is located on the surface of the dust collector and is operated to start and stop the suction operation. The input unit may be operated in conjunction with the placing operation.

In the above configuration, by operating the input section in conjunction with the placing operation, the suction operation is started in conjunction with the placing operation.

In one or more embodiments, the dust removal device may include an operating member supported by the joint part and capable of operating the input part. The operating member may be moved by at least a portion of the power tool while in contact with the input section in conjunction with the placing operation to operate the input section.

In the above configuration, the suction operation is started in conjunction with the placement operation by operating the input section with the operating member in conjunction with the placement operation.

In one or more embodiments, the power tool may move while in contact with the input section in conjunction with the placement operation to operate the input section.

In the above configuration, the suction operation is started in conjunction with the placement operation by operating the input section with the power tool in conjunction with the placement operation.

In one or more embodiments, the dust removal device may include a placement sensor that detects that the power tool is placed on the placement section. The suction unit may start the suction operation when it is determined that the power tool is placed on the placement unit based on the detection data of the placement sensor.

In the above configuration, when the placement sensor detects that the power tool is placed on the placement section, the suction operation is started in conjunction with the placement operation.

In one or more embodiments, the placement sensor may be placed on the placement section.

With the above configuration, the placement sensor can accurately detect whether or not the power tool is placed on the placement section.

In one or more embodiments, the first dust collecting section and the second dust collecting section may be connected in conjunction with the placing operation. The dust removal device may include a connection sensor that detects that the first dust collection section and the second dust collection section are connected. The suction unit may start the suction operation when it is determined that the first dust collection unit and the second dust collection unit are connected based on the detection data of the connection sensor.

In the above configuration, when the connection sensor detects that the first dust collection section and the second dust collection section are connected, the suction operation is started in conjunction with the placement operation.

In one or more embodiments, the upper surface of the mounting part may include an inclined surface. The power tool may include a cap part that is connected to the second dust collection part and has a passage through which dust passes. The joint part may be arranged below the opening of the cap part of the power tool placed on the mounting part in the direction of inclination of the inclined surface.

In the above configuration, the cap portion of the power tool easily approaches the joint portion due to the action of gravity, so the second dust collection portion and the joint portion are smoothly connected via the cap portion.

Hereinafter, embodiments according to the present disclosure will be described with reference to the drawings, but the present disclosure is not limited to the embodiments. The components of the embodiments described below can be combined as appropriate. Furthermore, some components may not be used.

[First embodiment]
A first embodiment will be described.

<Power tools>
FIG. 1 is a perspective view from the front showing a power tool 1A according to the present embodiment. FIG. 2 is a perspective view from the rear showing the power tool 1A according to the present embodiment. In this embodiment, the power tool 1A is a circular saw, which is a type of portable cutting machine. The operator performs cutting work on the workpiece using the power tool 1A.

The power tool 1A includes a housing 2, a base 3, a rotary cutter 4, a battery mounting part 5, a trigger lever 6, and a dust box 7.

The housing 2 has a gear housing section 2A, a motor housing section 2B, and a grip section 2C. The gear accommodating portion 2A accommodates a plurality of gears. The motor accommodating portion 2B accommodates the motor 8. The grip portion 2C is held by the operator. The grip portion 2C is arranged above the gear housing portion 2A.

The base 3 is placed on the workpiece. During the cutting operation, the lower surface of the base 3 comes into contact with the upper surface of the workpiece. The housing 2 is connected to the upper surface of the base 3 via a front support part 9 and a rear support part 10.

The rotary cutting tool 4 is rotated by a motor 8. The motor 8 is an inner rotor type DC brushless motor. The rotational force generated by the motor 8 is transmitted to the rotary cutting tool 4 via a plurality of gears housed in the gear housing section 2A. At least a portion of the rotary cutting tool 4 protrudes downward from the lower surface of the base 3. At least a portion of the rotary cutter 4 including the lower part of the rotary cutter 4 is covered with a cover 11 .

The workpiece is cut by rotating the rotary cutter 4 with the base 3 placed on the upper surface of the workpiece. When a cutting operation is performed to cut a workpiece, dust is generated from the workpiece.

The front support part 9 and the rear support part 10 movably support the housing 2 with respect to the base 3. The housing 2 is movable relative to the base 3. By moving the housing 2 relative to the base 3, the amount of protrusion of the rotary cutter 4 from the lower surface of the base 3 is adjusted.

The battery mounting part 5 is arranged at the rear of the grip part 2C. A battery pack 12 is attached to the battery attachment section 5. Battery pack 12 includes a rechargeable battery. The battery pack 12 functions as a power source for the power tool 1A. The AC power cable is not connected to power tool 1A.

The trigger lever 6 is arranged on the grip portion 2C. The motor 8 is driven when the trigger lever 6 is operated by the operator.

The dust box 7 collects dust generated from the workpiece during cutting work. The dust box 7 is arranged at least in part around the rotary cutting tool 4. The dust box 7 collects dust generated between the rotary blade 4 of the power tool 1A and the material to be cut. The dust box 7 functions as a second dust collecting section that collects dust generated from the power tool 1A. Dust is collected in the dust box 7. A cap part 13 having a passage through which dust passes is connected to the rear part of the dust box 7. An opening 14 is provided on the lower surface of the cap portion 13. An on-off valve 15 is provided in the opening 14 . The opening 14 is closed by an on-off valve 15. The on-off valve 15 opens and closes the passage in the cap portion 13. During the cutting operation, the passage of the cap portion 13 is closed by the on-off valve 15.

<Dust collector>
FIG. 3 is a perspective view from the rear showing the dust collector 21 according to the present embodiment. As shown in FIG. 3, the dust collector 21 includes a tank section 22, a main body section 23, and a latch 24. The main body part 23 is arranged above the tank part 22. Tank portion 22 supports main body portion 23 . The latch 24 fixes the tank portion 22 and the main body portion 23. The latch 24 is provided on each of the left and right parts of the tank section 22. Casters 25 are provided at the bottom of the tank portion 22.

The tank section 22 has a suction cylinder 26 and a tank 27. The suction tube 26 sucks in dust. The suction cylinder 26 is arranged at the rear of the tank 27. The suction cylinder 26 has a suction port 28 . The suction port 28 faces rearward. Suction port 28 is connected to the internal space of tank 27 . After being sucked in through the suction port 28, the dust flows into the internal space of the tank 27. The tank 27 collects dust sucked in from the suction port 28.

The main body portion 23 includes a main body housing 29, an operation panel 30, a switch button 31, and a handle 32.

The main body housing 29 is supported by the tank portion 22. Main body housing 29 accommodates controller 37, motor 38, and fan. Motor 38 generates power to rotate the fan. As the fan rotates, suction force is generated at the suction port 28. The motor 38 and the fan function as a suction unit that sucks in dust.

The operation panel 30 is arranged at the rear of the main body housing 29. A main power switch 33 and a suction force adjustment switch 34 are arranged on the operation panel 30.

The switch button 31 is arranged on the surface of the dust collector 21. The switch button 31 is arranged at the rear and upper part of the main body housing 29. The switch button 31 is rotatably supported by the main body housing 29.

By operating the main power switch 33, the power supply from the power source of the dust collector 21 to the dust collector 21 is switched between supplying and stopping the supply. In this embodiment, a battery mounting part is arranged in the internal space of the main body housing 29. The power source of the dust collector 21 is a battery pack attached to a battery attachment part. Note that the power source for the dust collector 21 may be an AC power source. By operating the suction force adjustment switch 34, the number of rotations per unit time of the motor 38 is adjusted. By adjusting the number of rotations per unit time of the motor 38, the suction force from the suction port 28 is adjusted.

With the main power switch 33 being operated so that power is supplied to the dust collector 21 from the power source of the dust collector 21, the switch button 31 is operated to switch between driving and stopping the motor 38. The switch button 31 functions as an input unit operated to switch between starting and stopping the suction operation of the motor 38 and the fan.

The handle 32 is rotatably supported on the upper part of the main body housing 29. The handle 32 is arranged in front of the switch button 31. The operator can carry the dust collector 21 while holding the handle 32.

<Dust removal device>
FIG. 4 is a schematic diagram showing the cutting operation according to this embodiment. A dust removal device 100 is placed at a cutting work site. The dust removal device 100 includes a dust collector 21 and a mounting device 40. The dust removal device 100 removes dust from the dust box 7 . The mounting device 40 is supported by the dust collector 21 . The mounting device 40 is placed above the dust collector 21 . In this embodiment, the dust removal device 100 is placed on the floor of a workplace.

As shown in FIG. 4, the workpiece W is placed on the workbench B. The operator holds the grip portion 2C of the power tool 1A with, for example, the right hand, and pulls and operates the trigger lever 6 with the index finger of the right hand. When the trigger lever 6 is pulled, the motor 8 is driven and the rotary cutter 4 is rotated.

With the base 3 placed on the upper surface of the workpiece W, the rotary cutter 4 rotates to cut the workpiece W. When the cutting operation of cutting the workpiece W is performed, dust is generated from the workpiece W. Dust generated from the workpiece W during the cutting operation is collected in the dust box 7. In this embodiment, the power tool 1A and the dust collector 21 are not connected via the dust collection hose during the cutting operation. The operator can perform cutting work with good work efficiency without being hindered by the dust collection hose. Further, in this embodiment, the power tool 1A uses the battery pack 12 as a power source. The AC power cable is not connected to power tool 1A. The operator can perform cutting work with good work efficiency without being hindered by the AC power cable.

If dust accumulates in the dust box 7 due to cutting work, the operator interrupts the cutting work and places the power tool 1A on the mounting device 40. In this embodiment, the suction operation of the motor 38 and the fan is started so that dust is transferred from the dust box 7 to the tank 27 using the loading operation in which the power tool 1A is loaded on the loading device 40 as a trigger. Ru.

FIG. 5 is a perspective view from the front showing a state in which the power tool 1A is placed on the placing device 40 according to the present embodiment. FIG. 6 is a side view from the right side showing a state in which the power tool 1A is placed on the placing device 40 according to the present embodiment.

As shown in FIGS. 4, 5, and 6, the mounting device 40 includes a mounting section 41, a leg section 42, a joint section 44, an operating member 45, and a coil spring 46.

The power tool 1A is placed on the placing portion 41. The mounting section 41 is a plate-shaped member. The outer shape of the mounting portion 41 is a rectangular shape that is long in the front-rear direction. The operator can place the power tool 1A on the placing section 41. With the power tool 1A placed on the mounting section 41, the base 3 of the power tool 1A contacts the upper surface of the mounting section 41. Note that since FIGS. 5 and 6 show the state immediately before the power tool 1A is placed on the mounting section 41, the base 3 is not in contact with the upper surface of the mounting section 41. An opening 43 is provided in a part of the mounting section 41 . The opening 43 is formed to penetrate the upper surface and lower surface of the mounting section 41. The opening 43 has a rectangular shape that is long in the front-rear direction. With the base 3 in contact with the upper surface of the mounting portion 41 , at least a portion of the rotary cutter 4 and the cover 11 that protrude downward from the base 3 are arranged inside the opening 43 . At least a portion of the cover 11 that protrudes downward from the base 3 is arranged below the lower surface of the mounting section 41.

The leg portions 42 support the lower surface of the placing portion 41. The leg portions 42 protrude downward from the lower surface of the placing portion 41 . The leg portions 42 are connected to the front and rear portions of the lower surface of the placing portion 41, respectively. The legs 42 contact the top surface of the dust collector 21 . The upper surface of the dust collector 21 supports the lower ends of the legs 42. The mounting section 41 is supported by the dust collector 21 via the leg sections 42 . The legs 42 separate the lower surface of the mounting section 41 from the upper surface of the dust collector 21 . The legs 42 prevent the lower end of the cover 11 from coming into contact with the upper surface of the dust collector 21 .

The joint part 44 is arranged on the mounting part 41. The joint portion 44 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1A. The joint portion 44 is a pipe-shaped (nozzle-shaped) member. A joint opening is provided at the rear of the mounting section 41. The joint opening is formed so as to penetrate the upper surface and lower surface of the mounting section 41. In the joint portion 44, a joint opening is arranged. The upper part of the joint part 44 projects upward from the upper surface of the mounting part 41. The upper end of the joint part 44 is arranged above the upper surface of the mounting part 41. The lower end of the joint part 44 is arranged at the same height as the lower surface of the mounting part 41. An inlet is provided at the upper end of the joint portion 44, and an outlet is provided at the lower end of the joint portion 44. The inlet provided at the upper end of the joint portion 44 and the outlet provided at the lower end of the joint portion 44 are connected via a passage.

The operating member 45 is supported by the joint portion 44. The operating member 45 can operate the switch button 31. The operating member 45 includes a cylindrical portion 45A disposed around the joint portion 44, and a rod portion 45B fixed to the outer peripheral surface of the cylindrical portion 45A and extending downward from the cylindrical portion 45A. A rod opening is provided at the rear of the mounting portion 41 . The rod opening is formed to pass through the upper and lower surfaces of the mounting section 41. A rod opening is arranged in the rod portion 45B. The rod portion 45B is arranged so as to protrude downward from the lower surface of the mounting portion 41.

The operating member 45 is movably supported by each of the joint part 44 and the mounting part 41. The cylindrical portion 45A is disposed around the joint portion 44 and is movable in the vertical direction. The rod portion 45B is movable in the vertical direction while being guided by the rod opening. The cylindrical portion 45A and the rod portion 45B are integral. The cylindrical portion 45A and the rod portion 45B move together in the vertical direction.

The lower end of the rod portion 45B contacts the switch button 31. The operating member 45 can operate the switch button 31 by moving up and down while the lower end of the rod portion 45B and the switch button 31 are in contact with each other.

The coil spring 46 is arranged around the joint part 44. The upper end of the coil spring 46 is connected to the lower end of the cylindrical portion 45A. A lower end portion of the coil spring 46 is supported by a flange portion provided at a lower portion of the joint portion 44 . Note that the lower end portion of the coil spring 46 may be supported on the upper surface of the mounting portion 41. The coil spring 46 generates elastic force so that the operating member 45 including the cylindrical portion 45A moves upward.

The outlet provided at the lower end of the joint portion 44 and the suction port 28 of the dust collector 21 are connected via a dust collection hose 35. Suction port 28 is connected to tank 27 . That is, the joint portion 44 is connected to the tank 27 via the dust collection hose 35 and the suction port 28 . The opening 14 of the cap part 13 is connected to the dust box 7 through the passage of the cap part 13. If dust accumulates in the dust box 7 due to the cutting operation, the operator interrupts the cutting operation and places the power tool 1A on the mounting section 41. In this embodiment, the joint part 44 is connected to the tank 27 of the dust collector 21 and the dust box 7 that collects dust generated from the power tool 1A in conjunction with the mounting operation in which the power tool 1A is mounted on the mounting part 41. Connect. The motor 38 and fan arranged in the dust collector 21 start a suction operation so that dust is transferred from the dust box 7 to the tank 27, triggered by the placing operation in which the electric tool 1A is placed on the placing part 41. do.

When the power tool 1A is not placed on the placing part 41, the passage of the cap part 13 is closed by the on-off valve 15. In the mounting operation, the upper end of the joint part 44 is inserted into the opening 14 provided at the lower part of the cap part 13. When the upper end of the joint part 44 is inserted into the opening 14, the on-off valve 15 that closes the opening 14 comes into contact with the upper end of the joint part 44, and the on-off valve 15 is moved upward by the joint part 44. . As a result, the passage of the cap portion 13 is opened. The joint part 44 is connected to the cap part 13. Further, in the placing operation, a part of the cover 11 is placed inside the opening 43 of the placing part 41. By arranging a portion of the cover 11 inside the opening 43, the base 3 can come into contact with the upper surface of the mounting section 41.

When the power tool 1A is lowered so that the base 3 contacts the upper surface of the mounting portion 41 with the upper end of the joint portion 44 inserted into the opening 14, the lower surface of the cap portion 13 is brought into contact with the upper surface of the cylindrical portion 45A. come into contact with. When the power tool 1A is further lowered with the lower surface of the cap portion 13 and the upper surface of the cylindrical portion 45A in contact with each other, the operating member 45 is lowered by the cap portion 13. The operating member 45 descends against the elastic force of the coil spring 46. The switch button 31 is pressed by lowering the operating member 45 while the lower end of the rod portion 45B and the upper surface of the switch button 31 are in contact with each other. The switch button 31 is operated by the operating member 45 in conjunction with the placing operation. When the switch button 31 is pressed in conjunction with the placing operation, the motor 8 and the fan, which are the suction section, rotate. With the power tool 1A placed on the placing portion 41, the passage of the cap portion 13 is opened. Thereby, the suction operation of the motor 8 and the fan is started so that the dust is transferred from the dust box 7 to the tank 27. Dust transferred from the dust box 7 to the tank 27 passes through a dust collecting hose 35. Dust is removed from the dust box 7.

After the suction operation is performed with the power tool 1A placed on the mounting portion 41, the suction operation is stopped. The suction operation may be stopped while the power tool 1A is placed on the placing portion 41. For example, the suction operation may be stopped after the suction operation is performed for a certain period of time after the power tool 1A is placed on the placement portion 41. After all the dust in the dust box 7 is transferred to the tank 27, the suction operation may be stopped. With the power tool 1A placed on the placement portion 41, the suction operation may be performed intermittently a plurality of times.

In the present embodiment, the suction operation is stopped using the lift operation in which the power tool 1A leaves the mounting portion 41 as a trigger. When restarting the cutting operation, the operator lifts the power tool 1A from the mounting section 41. When the power tool 1A is lifted from the mounting portion 41, the cap portion 13 rises with respect to the operating member 45. As the cap portion 13 rises, the cylindrical portion 45A of the operating member 45 moves upward due to the elastic force of the coil spring 46. As the cylindrical portion 45A moves upward, the rod portion 45B moves upward away from the switch button 31. This releases the operation of the switch button 31 by the rod portion 45B. When the operation of the switch button 31 is released in conjunction with the lift operation, the rotation of the motor 8 and the fan, which is the suction section, is stopped. This causes the suction operation of the motor 8 and the fan to stop. Further, in conjunction with the lift operation, the joint portion 44 is removed from the opening 14 of the cap portion 13. When the joint portion 44 is removed from the opening 14 of the cap portion 13, the passage of the cap portion 13 is closed by the on-off valve 15. By removing the joint part 44 from the opening 14 of the cap part 13, the connection between the joint part 44 and the cap part 13 is released. By disconnecting the joint portion 44 and the cap portion 13, the connection between the tank 27 and the dust box 7 is disconnected. The operator can resume the cutting operation using the power tool 1A.

<Effect>
As explained above, in the present embodiment, the dust removal device 100 includes the mounting section 41, the joint section 44 arranged on the mounting section 41, the motor 38 and the fan which are the suction section arranged on the dust collector 21. and. The joint part 44 is connected to the mounting operation in which the power tool 1A is placed on the mounting part 41, and the joint part 44 is connected to the tank 27, which is the first dust collection part of the dust collector 21, and the first part that collects dust generated from the power tool 1A. 2 is connected to a dust box 7 which is a dust collection section. The motor 38 and the fan start a suction operation using the placement operation as a trigger to transfer dust from the dust box 7 to the tank 27.

In the above configuration, dust generated from the workpiece W during the cutting operation is collected in the dust box 7. There is no need to connect the power tool 1A and the dust collector 21 via a dust collection hose during the cutting operation. Since the power tool 1A and the dust collector 21 are not connected through the dust collection hose during the cutting operation, a decrease in the workability of the cutting operation is suppressed. When interrupting or finishing the cutting operation, the operator places the power tool 1A on the mounting section 41. The tank 27 of the dust collector 21 and the dust box 7 are connected in conjunction with the mounting operation in which the power tool 1A is mounted on the mounting section 41. Using the placement operation as a trigger, the motor 38 and fan of the dust collector 21 start a suction operation. Thereby, the dust is transferred from the dust box 7 to the tank 27, and the dust in the dust box 7 is collected into the tank 27. Dust is removed from the dust box 7.

In this embodiment, the power tool 1A includes a dust box 7.

In the above configuration, dust generated from the power tool 1A is collected in the dust box 7, which is a component of the power tool 1A. Note that the dust box 7 may be an accessory of the power tool 1A.

In the present embodiment, after the suction operation is performed with the power tool 1A placed on the mounting portion 41, the suction operation is stopped.

In the above configuration, by stopping the suction operation at a predetermined timing, the dust collector 21 is prevented from continuing to operate unnecessarily.

In the present embodiment, the suction operation is stopped using the lift operation in which the power tool 1A leaves the mounting portion 41 as a trigger.

In the above configuration, the suction operation is stopped using the lift operation as a trigger, thereby preventing the dust collector 21 from continuing to operate unnecessarily. When restarting the cutting operation, the operator lifts the power tool 1A from the mounting section 41. The connection between the tank 27 and the dust box 7 is released in conjunction with the lift operation in which the power tool 1A is moved away from the mounting portion 41. The suction operation is stopped using the lift operation as a trigger.

In this embodiment, the mounting section 41 is supported by the dust collector 21.

With the above configuration, the operator can place the power tool 1A on the placing portion 41 supported by the dust collector 21.

In this embodiment, the dust removal device 100 includes a cap portion 13 that is connected to the dust box 7 and has a passage through which dust passes. The joint part 44 is connected to the cap part 13.

In the above configuration, the joint part 44 and the dust box 7 are connected via the cap part 13.

In this embodiment, the dust removal device 100 includes an on-off valve 15 that opens and closes the passage of the cap portion 13. When the power tool 1A is not placed on the placing portion 41, the passage of the cap portion 13 is closed by the on-off valve 15. With the power tool 1A placed on the placing portion 41, the passage of the cap portion 13 is opened.

In the above configuration, when the power tool 1A is not placed on the mounting portion 41, the passage of the cap portion 13 is closed by the on-off valve 15, so that dust in the dust box 7 is transferred to the dust box 7 through the passage of the cap portion 13. spillage to the outside is suppressed. When the power tool 1A is placed on the placing part 41, the passage of the cap part 13 is opened, so that dust is transferred from the dust box 7 to the tank 27. In the present embodiment, when the power tool 1A is placed on the placing portion 41, the opening/closing valve 15 moves due to contact with the joint portion 44, thereby opening the passage of the cap portion 13. Note that after the power tool 1A is placed on the placement part 41, the passage of the cap part 13 may be opened by moving the on-off valve 15 by the suction force of the dust collector 21.

In this embodiment, the dust collector 21 has a suction port 28 connected to the tank 27. The dust removal device 100 includes a dust collection hose 35 that connects the suction port 28 and the joint portion 44 . Dust transferred from the dust box 7 to the tank 27 passes through a dust collecting hose 35.

In the above configuration, the tank 27 and the dust box 7 are connected via the joint portion 44 and the dust collection hose 35. The dust in the dust box 7 is transferred to the tank 27 via the joint part 44 and the dust collecting hose 35.

In this embodiment, the dust removal device 100 includes a switch button 31 which is an input section that is placed on the surface of the dust collector 21 and is operated to switch between starting and stopping the suction operation. The switch button 31 is operated in conjunction with the placing operation.

In the above configuration, the suction operation is started in conjunction with the placement operation by operating the switch button 31 in conjunction with the placement operation.

In the present embodiment, the dust removal device 100 includes an operating member 45 that is supported by the joint portion 44 and that can operate the switch button 31. In conjunction with the placement operation, the operating member 45 is moved by at least a portion of the power tool 1A while in contact with the switch button 31 to operate the switch button 31.

In the above configuration, the switch button 31 is operated by the operating member 45 in conjunction with the placement operation, and thereby the suction operation is started in conjunction with the placement operation.

[Second embodiment]
A second embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description of the components will be simplified or omitted.

<Dust removal device>
FIG. 7 is a side view from the right side showing a state in which the power tool 1A is placed on the placing device 401 according to the present embodiment. The dust removal device 101 according to this embodiment includes a mounting device 401 supported by the dust collector 21. The mounting device 401 includes a mounting section 411, a leg section 421, an opening 431, and a joint section 441. In this embodiment, the dust collector 21 is installed on the floor of the workplace so that the suction port 28 faces to the right.

The power tool 1A is placed on the placing portion 411. The operator can place the power tool 1A on the placing section 411. The base 3 of the power tool 1A is in contact with the upper surface of the mounting portion 411 when the power tool 1A is placed on the mounting portion 411. Note that, since FIG. 7 shows the state immediately before the power tool 1A is placed on the mounting section 411, the base 3 is not in contact with the upper surface of the mounting section 411. The opening 431 is provided in a part of the mounting section 411. At least a portion of the rotary cutter 4 and the cover 11 are arranged inside the opening 431 with the base 3 in contact with the upper surface of the mounting section 411 . At least a portion of the cover 11 protrudes downward from the lower surface of the base 3.

The leg portions 421 support the lower surface of the placing portion 411. The leg portions 421 protrude downward from the lower surface of the placing portion 41 . The upper surface of the dust collector 21 supports the lower ends of the legs 421. The mounting section 411 is supported by the dust collector 21 via leg sections 421.

The joint part 441 is arranged on the mounting part 411. The joint portion 441 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1A. The outlet provided at the lower end of the joint portion 441 and the suction port 28 of the dust collector 21 are connected via the dust collection hose 35. The joint portion 441 is connected to the tank 27 via the dust collection hose 35 and the suction port 28 . The opening 14 of the cap part 13 is connected to the dust box 7 through the passage of the cap part 13.

If dust accumulates in the dust box 7 due to the cutting operation, the operator interrupts the cutting operation and places the power tool 1A on the mounting section 411. The joint part 441 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1A in conjunction with the mounting operation in which the power tool 1A is mounted on the mounting part 411. The motor 38 and fan arranged in the dust collector 21 start a suction operation so that dust is transferred from the dust box 7 to the tank 27, triggered by the placing operation in which the electric tool 1A is placed on the placing part 411. do.

When the power tool 1A is not placed on the placing portion 411, the passage of the cap portion 13 is closed by the on-off valve 15. In the mounting operation, the upper end of the joint part 441 is inserted into the opening 14 provided at the lower part of the cap part 13. By inserting the upper end of the joint part 441 into the opening 14, the on-off valve 15, which had closed the opening 14, is moved upward by the upper end of the joint part 441. As a result, the passage of the cap portion 13 is opened. Further, in the mounting operation, the joint portion 441 and the cap portion 13 are connected. Further, in the placing operation, a part of the cover 11 is placed inside the opening 431 of the placing part 411. The lower end of the cover 11 protrudes downward from the lower surface of the mounting section 411.

When the power tool 1A is lowered so that the base 3 contacts the upper surface of the mounting section 411 with the upper end of the joint section 441 inserted into the opening 14, the power tool 1A protrudes below the lower surface of the mounting section 411. The lower end of the cover 11 touching the switch button 31. When the power tool 1A is further lowered with the lower end of the cover 11 and the switch button 31 in contact with each other, the switch button 31 is pressed. In this manner, in this embodiment, the power tool 1A moves downward while in contact with the switch button 31 in conjunction with the placing operation, and operates the switch button 31. When the switch button 31 is pressed in conjunction with the placing operation, the motor 8 and the fan, which are the suction section, rotate. Thereby, the suction operation of the motor 8 and the fan is started so that the dust is transferred from the dust box 7 to the tank 27. Dust transferred from the dust box 7 to the tank 27 passes through a dust collecting hose 35. Dust is removed from the dust box 7.

After the suction operation is performed with the power tool 1A placed on the mounting portion 411, the suction operation is stopped. In this embodiment, the suction operation is stopped using a lift operation in which the power tool 1A moves away from the mounting portion 411 as a trigger. When restarting the cutting operation, the operator lifts the power tool 1A from the mounting section 411. When the power tool 1A is lifted from the mounting portion 411, the cover 11 moves upward away from the switch button 31. As a result, the operation of the switch button 31 by the cover 11 is released. When the operation of the switch button 31 is released in conjunction with the lift operation, the rotation of the motor 8 and the fan, which is the suction section, is stopped. This causes the suction operation of the motor 8 and the fan to stop. Further, in conjunction with the lift operation, the joint portion 441 is removed from the opening 14 of the cap portion 13. When the joint portion 441 is removed from the opening 14 of the cap portion 13, the passage of the cap portion 13 is closed by the on-off valve 15. By removing the joint part 441 from the opening 14 of the cap part 13, the connection between the joint part 441 and the cap part 13 is released. The operator can resume the cutting operation using the power tool 1A.

<Effect>
As described above, in the present embodiment, the power tool 1A moves while in contact with the switch button 31 in conjunction with the placing operation, and operates the switch button 31.

In the above configuration, when the switch button 31 is operated by the cover 11 of the power tool 1A in conjunction with the placement operation, the suction operation is started in conjunction with the placement operation.

[Third embodiment]
A third embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description of the components will be simplified or omitted.

<Dust removal device>
FIG. 8 is a perspective view from the front showing a state in which the power tool 1A is placed on the placing device 402 according to the present embodiment. FIG. 9 is a side view from the right side showing a state in which the power tool 1A is placed on the placing device 402 according to the present embodiment. FIG. 10 is a block diagram showing the mounting device 402 according to this embodiment.

The dust removal device 102 according to the present embodiment includes a mounting device 402 supported by the dust collector 21. The mounting device 402 includes a mounting section 412, a lifting mechanism 422, an opening 432, a joint section 442, and a sensor 36.

The power tool 1A is placed on the placing portion 412. The operator can place the power tool 1A on the placing section 412. With the power tool 1A placed on the mounting portion 412, the base 3 of the power tool 1A contacts the upper surface of the mounting portion 412. Note that, since FIGS. 8 and 9 show the state immediately before the power tool 1A is placed on the mounting section 412, the base 3 is not in contact with the upper surface of the mounting section 412. The opening 432 is provided in a part of the mounting section 412. With the base 3 in contact with the upper surface of the mounting portion 412 , at least a portion of the rotary cutter 4 and the cover 11 are arranged inside the opening 432 .

The elevating mechanism 422 supports the lower surface of the placing section 412. The elevating mechanism 422 raises and lowers the placing section 412. The lifting mechanism 422 is supported on the upper surface of the dust collector 21. The mounting section 412 is supported by the dust collector 21 via a lifting mechanism 422.

The joint part 442 is arranged on the mounting part 412. The joint portion 442 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1A. The outlet provided at the lower end of the joint portion 442 and the suction port 28 of the dust collector 21 are connected via the dust collection hose 35. The joint portion 442 is connected to the tank 27 via the dust collection hose 35 and the suction port 28 . The opening 14 of the cap part 13 is connected to the dust box 7 through the passage of the cap part 13.

The sensor 36 is a placement sensor that detects that the power tool 1A is placed on the placement section 412. The sensor 36 is arranged on the mounting section 412. When the power tool 1A is placed on the mounting section 412, a part of the cover 11 is placed inside the opening 432 of the mounting section 412, and the lower end of the cover 11 is lower than the lower surface of the mounting section 412. stand out. In the present embodiment, the sensor 36 detects that the power tool 1A is placed on the placement section 412 by detecting the cover 11 that protrudes below the lower surface of the placement section 412. In this embodiment, the sensor 36 is arranged on the lower surface of the mounting section 412. The sensor 36 detects the cover 11 in a non-contact manner. The sensor 36 may be an optical sensor that detects the cover 11 in a non-contact manner by emitting detection light and receiving the detection light reflected by the cover 11. Note that the sensor 36 may detect the cover 11 through contact with the cover 11.

As shown in FIG. 10, the detection data of the sensor 36 is output to the controller 37 mounted on the dust collector 21. The sensor 36 and the controller 37 may communicate wirelessly or may be connected via a signal cable. When the controller 37 determines that the power tool 1A is placed on the placement section 412 based on the detection data of the sensor 36, the controller 37 drives the motor 38. The motor 38 and the fan start the suction operation when the controller 37 determines that the power tool 1A is placed on the placement portion 412 based on the detection data of the sensor 36.

If dust accumulates in the dust box 7 due to the cutting operation, the operator interrupts the cutting operation and places the power tool 1A on the mounting section 412. The joint part 442 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1A in conjunction with the mounting operation in which the power tool 1A is mounted on the mounting part 412. The motor 38 and fan disposed in the dust collector 21 start a suction operation so that dust is transferred from the dust box 7 to the tank 27, triggered by the placing operation in which the power tool 1A is placed on the placing part 412. do.

When the power tool 1A is not placed on the placing portion 412, the passage of the cap portion 13 is closed by the on-off valve 15. In the mounting operation, the upper end of the joint part 442 is inserted into the opening 14 provided at the lower part of the cap part 13. By inserting the upper end of the joint part 442 into the opening 14, the on-off valve 15, which had closed the opening 14, is moved upward by the upper end of the joint part 442. As a result, the passage of the cap portion 13 is opened. Further, in the mounting operation, the joint portion 442 and the cap portion 13 are connected. Further, in the placing operation, a part of the cover 11 is placed inside the opening 432 of the placing part 412.

When the power tool 1A is lowered so that the base 3 comes into contact with the upper surface of the mounting section 412 with the upper end of the joint section 442 inserted into the opening 14, the lower end of the cover 11 is inserted into the mounting section 412. Projects downward from the lower surface. The sensor 36 detects that the power tool 1A is placed on the placement section 412 by detecting the cover 11 that protrudes below the lower surface of the placement section 412. Detection data from the sensor 36 is output to a controller 37 mounted on the dust collector 21. When the controller 37 determines that the power tool 1A is placed on the placement section 412 based on the detection data of the sensor 36, the controller 37 drives the motor 38. When the cover 11 is detected by the sensor 36 in conjunction with the placing operation, the motor 8 and the fan serving as the suction section rotate. Thereby, the suction operation of the motor 8 and the fan is started so that the dust is transferred from the dust box 7 to the tank 27. Dust transferred from the dust box 7 to the tank 27 passes through a dust collecting hose 35. Dust is removed from the dust box 7.

After the suction operation is performed with the power tool 1A placed on the mounting portion 412, the suction operation is stopped. In this embodiment, the suction operation is stopped using a lift operation in which the power tool 1A moves away from the mounting portion 412 as a trigger. When restarting the cutting operation, the operator lifts the power tool 1A from the mounting section 412. When the power tool 1A is lifted from the mounting portion 412, the cover 11 moves upward. As a result, the sensor 36 no longer detects the cover 11. When the sensor 36 no longer detects the cover 11 in conjunction with the lift operation, the controller 37 stops the motor 8. This causes the suction operation of the motor 8 and the fan, which are the suction portion, to stop. Further, in conjunction with the lift operation, the joint portion 442 is removed from the opening 14 of the cap portion 13. When the joint portion 442 is removed from the opening 14 of the cap portion 13, the passage of the cap portion 13 is closed by the on-off valve 15. By removing the joint portion 442 from the opening 14 of the cap portion 13, the connection between the joint portion 442 and the cap portion 13 is released. The operator can resume the cutting operation using the power tool 1A.

<Effect>
As explained above, in this embodiment, the dust removal device 102 includes the lifting mechanism 422 that lifts and lowers the mounting section 412. The mounting section 412 is supported by the dust collector 21 via a lifting mechanism 422.

In the above configuration, the worker can arrange the mounting section 412 at an arbitrary height according to, for example, the height of the worker or the height of the workbench B. Thereby, the operator can smoothly place the power tool 1A on the placing portion 412.

In this embodiment, the dust removal device 102 includes a sensor 36 that is a placement sensor that detects that the power tool 1A is placed on the placement section 41. The motor 38 and the fan start the suction operation when it is determined that the power tool 1A is placed on the placement part 412 based on the detection data of the sensor 36.

In the above configuration, when the sensor 36 detects that the power tool 1A is placed on the placement portion 412, the suction operation is started in conjunction with the placement operation.

In this embodiment, the sensor 36 is placed on the mounting section 412.

With the above configuration, the sensor 36 can accurately detect whether or not the power tool 1A is placed on the placing portion 412.

[Fourth embodiment]
A fourth embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description of the components will be simplified or omitted.

<Dust removal device>
FIG. 11 is a perspective view from the rear showing the mounting device 403 according to this embodiment. FIG. 12 is a side view from the right side showing a state in which the power tool 1B is placed on the placing device 403 according to the present embodiment. FIG. 13 is a block diagram showing the mounting device 403 according to this embodiment.

The dust removal device 103 according to this embodiment includes a mounting device 403 supported by the dust collector 21. The mounting device 403 includes a mounting section 413, a leg section 423, an opening 433, a joint section 443, and a switch 39.

The power tool 1B is placed on the placing portion 413. The operator can place the power tool 1B on the placing section 413. With the power tool 1B placed on the mounting portion 413, the base 3 of the power tool 1B contacts the upper surface of the placement portion 413. In this embodiment, the upper surface of the mounting portion 413 includes an inclined surface. The upper surface of the mounting portion 413 is inclined downward toward the rear. The opening 433 is provided in a part of the mounting section 413. At least a portion of the rotary cutter 4 and the cover 11 are arranged inside the opening 433 with the base 3 in contact with the upper surface of the mounting portion 413 .

The leg portions 423 support the lower surface of the placing portion 413. The leg portions 423 protrude downward from the front portion of the lower surface of the placing portion 413 . The leg portions 423 support the placing portion 413 such that the upper surface of the placing portion 413 is inclined downward toward the rear. The upper surface of the dust collector 21 supports the lower ends of the legs 423. The mounting section 413 is supported by the dust collector 21 via leg sections 423. In this embodiment, the upper surface of the dust collector 21 supports the rear end of the lower surface of the mounting section 413.

The joint part 443 is arranged on the mounting part 413. The joint portion 443 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1B. In this embodiment, the power tool 1B has a cap portion 133 connected to the rear part of the dust box 7. The cap portion 133 has an opening 143 into which the joint portion 443 is inserted. In this embodiment, the opening 143 is provided at the rear of the cap portion 133. The opening 143 is opened and closed by an on-off valve 153. The joint portion 443 is arranged below the opening 143 of the cap portion 133 of the power tool 1B placed on the placement portion 413 in the direction of inclination of the upper surface of the placement portion 413. In this embodiment, the joint portion 443 is supported by the support plate portion 473. The support plate section 473 is fixed to the rear part of the mounting section 413.

The outlet provided at the rear end of the joint portion 443 and the suction port 28 of the dust collector 21 are connected via the dust collection hose 35. The joint portion 443 is connected to the tank 27 via the dust collection hose 35 and the suction port 28 . The opening 143 of the cap part 133 is connected to the dust box 7 through the passage of the cap part 133.

The switch 39 is a connection sensor that detects that the tank 27 and the dust box 7 are connected. The switch 39 is arranged at the joint portion 443. When the power tool 1B is placed on the mounting section 413, the power tool 1B moves downward toward the rear while sliding on the upper surface of the mounting section 413 due to the action of gravity. As a result, the cap portion 133 approaches the joint portion 443, and the cap portion 133 and the joint portion 443 come into contact with each other. In this embodiment, the switch 39 detects that the tank 27 and the dust box 7 are connected by detecting the cap part 133 connected to the joint part 443. The switch 39 detects the cap portion 133 through contact with the cap portion 133 .

As shown in FIG. 13, the detection data of the switch 39 is output to the controller 37 mounted on the dust collector 21. The switch 39 and the controller 37 may communicate wirelessly or may be connected via a signal cable. When the controller 37 determines that the electric tool 1B is placed on the placing portion 413 and the tank 27 and the dust box 7 are connected based on the detection data of the switch 39, the controller 37 drives the motor 38. The motor 38 and the fan start the suction operation when the controller 37 determines that the electric tool 1B is placed on the placement part 413 and the tank 27 and the dust box 7 are connected based on the detection data of the switch 39. do.

If dust accumulates in the dust box 7 due to the cutting operation, the operator interrupts the cutting operation and places the power tool 1B on the mounting section 413. The joint part 443 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1B in conjunction with the mounting operation in which the power tool 1B is mounted on the mounting part 413. The motor 38 and fan disposed in the dust collector 21 start a suction operation to transfer dust from the dust box 7 to the tank 27, triggered by the placing operation in which the electric tool 1B is placed on the placing part 413. do.

When the power tool 1B is not placed on the placing portion 413, the passage of the cap portion 133 is closed by the on-off valve 153. During the placing operation, when the base 3 slides backward and downward on the upper surface of the placing part 413 due to the action of gravity, the front end of the joint part 443 enters the opening 143 provided at the rear of the cap part 133. inserted. By inserting the front end of the joint part 444 into the opening 143, the on-off valve 153, which had closed the opening 143, is moved forward by the front end of the joint part 443. As a result, a passage in the cap portion 133 is opened.

With the front end of the joint part 443 inserted into the opening 143 , when the base 3 slides backward and downward on the upper surface of the mounting part 413 due to the action of gravity, the joint part 443 will be inserted into the cap part 133 . connected to. By detecting the cap portion 133 connected to the joint portion 443, the switch 39 detects that the power tool 1B is placed on the placement portion 413 and that the tank 27 and the dust box 7 are connected. Detection data of the switch 39 is output to a controller 37 mounted on the dust collector 21. When the controller 37 determines that the electric tool 1B is placed on the placing portion 413 and the tank 27 and the dust box 7 are connected based on the detection data of the switch 39, the controller 37 drives the motor 38. In conjunction with the placement operation, the cap portion 133 is detected by the switch 39, thereby rotating the motor 8, which is the suction portion, and the fan. Thereby, the suction operation of the motor 8 and the fan is started so that the dust is transferred from the dust box 7 to the tank 27. Dust transferred from the dust box 7 to the tank 27 passes through a dust collecting hose 35. Dust is removed from the dust box 7.

After the suction operation is performed with the power tool 1B placed on the mounting portion 413, the suction operation is stopped. In this embodiment, the suction operation is stopped using the lift operation in which the power tool 1B moves away from the mounting portion 413 as a trigger. When restarting the cutting operation, the operator lifts the power tool 1B from the mounting section 413. When the power tool 1B is lifted from the mounting portion 413, the cap portion 133 separates from the joint portion 443 and moves upward. As a result, the switch 39 no longer detects the cap portion 133. When the switch 39 no longer detects the cap portion 133 in conjunction with the lift operation, the controller 37 stops the motor 8. This causes the suction operation of the motor 8 and the fan, which are the suction portion, to stop. Further, in conjunction with the lift operation, the joint portion 443 is removed from the opening 143 of the cap portion 133. When the joint part 443 is removed from the opening 143 of the cap part 133, the passage of the cap part 133 is closed by the on-off valve 153. The operator can resume the cutting operation using the power tool 1B.

<Effect>
As explained above, in this embodiment, the upper surface of the mounting portion 413 includes an inclined surface. The power tool 1B includes a cap portion 133 that is connected to the dust box 7, which is a second dust collection portion, and has a passage through which dust passes. The joint portion 443 is arranged below the opening 143 of the cap portion 133 of the power tool 1B placed on the placement portion 413 in the direction of inclination of the upper surface of the placement portion 413.

In the above configuration, the cap portion 133 of the power tool 1B easily approaches the joint portion 443 due to the action of gravity, so the dust box 7 and the joint portion 443 are smoothly connected via the cap portion 133.

In this embodiment, the tank 27 and the dust box 7 are connected in conjunction with the mounting operation. The dust removal device 103 includes a switch 39 that is a connection sensor that detects that the tank 27 and the dust box 7 are connected. The motor 38 and the fan serving as the suction unit start the suction operation when it is determined that the tank 27 and the dust box 7 are connected based on the detection data of the switch 39.

In the above configuration, when the switch 39 detects that the tank 27 and the dust box 7 are connected, the suction operation is started in conjunction with the placement operation.

[Fifth embodiment]
A fifth embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description of the components will be simplified or omitted.

<Dust removal device>
FIG. 14 is a perspective view from the front showing the power tool 1C according to the present embodiment. FIG. 15 is a perspective view from the rear showing the power tool 1C according to the present embodiment.

As shown in FIGS. 14 and 15, in the present embodiment, the power tool 1C includes a pipe member 16 connected to the rear part of the dust box 7, a retractable hose 18 connected to the pipe member 16, and a retractable hose 18 connected to the retractable hose 18. and a base plate 17 to which the cap part 134 is fixed.

The base plate 17 is fixed to at least a portion of the housing 2. The relative positions of base 3 and base plate 17 do not change. The lower surface of the base 3 and the lower surface of the base plate 17 are arranged in the same plane.

The cap part 134 is connected to the dust box 7. The cap portion 134 has a passage through which dust passes. The cap portion 134 is a cylindrical member. The base plate 17 has a cap opening in which the cap portion 134 is placed. The cap portion 134 is fixed to the base plate 17. An opening 144 is provided at the lower end of the cap portion 134. An on-off valve 154 is provided in the opening 144 . The on-off valve 154 opens and closes the passage of the cap portion 134.

The pipe member 16 is connected to the rear part of the dust box 7. A portion of the pipe member 16 is bent. In this embodiment, the upper end of the cap portion 134 is connected to the dust box 7 via the telescopic hose 18 and the pipe member 16.

FIG. 16 is a side view from the right side showing a state in which the power tool 1C is placed on the placing device 404 according to the present embodiment. The dust removal device 104 according to this embodiment includes a mounting device 404 supported by the dust collector 21. The mounting device 404 includes a mounting section 414, a leg section 424, an opening 434, a joint section 444, and a sensor 36.

The power tool 1C is placed on the placing portion 414. The operator can place the power tool 1C on the placing section 414. When the power tool 1C is placed on the mounting section 414, the base 3 and base plate 17 of the power tool 1C are in contact with the upper surface of the mounting section 414. Note that, since FIG. 16 shows the state immediately before the power tool 1C is placed on the mounting section 414, the base 3 and the base plate 17 are not in contact with the upper surface of the mounting section 414. The opening 434 is provided in a part of the mounting section 414. At least a portion of the rotary cutter 4 and the cover 11 are arranged inside the opening 434 with the base 3 and the base plate 17 in contact with the upper surface of the mounting section 414 .

The leg portions 424 support the lower surface of the placing portion 414. The leg portions 424 protrude downward from the lower surface of the placing portion 414. The upper surface of the dust collector 21 supports the lower ends of the legs 424. The mounting section 414 is supported by the dust collector 21 via the legs 424.

The joint part 444 is arranged on the mounting part 414. The joint portion 444 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1C. The outlet provided at the lower end of the joint portion 444 and the suction port 28 of the dust collector 21 are connected via the dust collection hose 35. The joint portion 444 is connected to the tank 27 via the dust collection hose 35 and the suction port 28 . The opening 144 of the cap part 134 is connected to the dust box 7 through the passage of the cap part 134, the passage of the telescopic hose 18, and the passage of the pipe member 16.

The sensor 36 is a placement sensor that detects that the power tool 1C is placed on the placement section 414. The sensor 36 detects that the power tool 1C is placed on the placement section 414 by detecting the cover 11 that protrudes below the lower surface of the placement section 414. Detection data from the sensor 36 is output to a controller 37 mounted on the dust collector 21. When the controller 37 determines that the power tool 1C is placed on the placement section 412 based on the detection data of the sensor 36, the controller 37 drives the motor 38.

If dust accumulates in the dust box 7 due to the cutting operation, the operator interrupts the cutting operation and places the power tool 1C on the mounting section 414. The joint part 444 connects the tank 27 of the dust collector 21 and the dust box 7 of the power tool 1C in conjunction with the mounting operation in which the power tool 1C is mounted on the mounting part 414. The motor 38 and fan arranged in the dust collector 21 start a suction operation so that dust is transferred from the dust box 7 to the tank 27, triggered by the placing operation in which the power tool 1C is placed on the placing part 414. do.

When the power tool 1C is not placed on the placing portion 414, the passage of the cap portion 134 is closed by the on-off valve 154. In the mounting operation, the upper end of the joint part 444 is inserted into the opening 144 provided at the lower part of the cap part 134. By inserting the upper end of the joint portion 444 into the opening 144, the on-off valve 154, which had closed the opening 144, is moved upward by the upper end of the joint portion 444. This opens the passage in the cap portion 134. Joint part 444 is connected to cap part 134. Further, in the placing operation, a part of the cover 11 is placed inside the opening 434 of the placing part 414. By disposing a portion of the cover 11 inside the opening 434, the base 3 and the base plate 17 can come into contact with the upper surface of the mounting section 414.

When the power tool 1C is lowered so that the base 3 and base plate 17 come into contact with the upper surface of the mounting section 414 with the upper end of the joint section 444 inserted into the opening 144, the lower end of the cover 11 is inserted into the opening 144. It protrudes below the lower surface of the placement part 414. The sensor 36 detects that the power tool 1C is placed on the placement section 414 by detecting the cover 11 that protrudes below the lower surface of the placement section 414. Detection data from the sensor 36 is output to a controller 37 mounted on the dust collector 21. When the controller 37 determines that the power tool 1C is placed on the placement section 414 based on the detection data of the sensor 36, the controller 37 drives the motor 38. When the cover 11 is detected by the sensor 36 in conjunction with the placing operation, the motor 8 and the fan serving as the suction section rotate. Thereby, the suction operation of the motor 8 and the fan is started so that the dust is transferred from the dust box 7 to the tank 27. Dust transferred from the dust box 7 to the tank 27 passes through a dust collecting hose 35. Dust is removed from the dust box 7.

After the suction operation is performed with the power tool 1C placed on the mounting portion 414, the suction operation is stopped. In this embodiment, the suction operation is stopped using a lift operation in which the power tool 1C moves away from the mounting portion 414 as a trigger. When restarting the cutting operation, the operator lifts the power tool 1C from the mounting section 414. When the power tool 1C is lifted from the mounting portion 414, the cover 11 moves upward. As a result, the sensor 36 no longer detects the cover 11. When the sensor 36 no longer detects the cover 11 in conjunction with the lift operation, the controller 37 stops the motor 8. This causes the suction operation of the motor 8 and the fan, which are the suction portion, to stop. Further, in conjunction with the lift operation, the joint portion 444 is removed from the opening 144 of the cap portion 134. When the joint portion 444 is removed from the opening 144 of the cap portion 134, the passage of the cap portion 134 is closed by the on-off valve 154. By removing the joint part 444 from the opening 144 of the cap part 134, the connection between the joint part 444 and the cap part 134 is released. The operator can resume the cutting operation using the power tool 1C.

<Effect>
As explained above, in this embodiment, the cap portion 134 is connected to the dust box 7 via the telescopic hose 18.

With the above configuration, the operator can smoothly change the relative position of the cap part 134 and the dust box 7. The cap portion 134 is fixed to the base plate 17. In this embodiment, the relative positions of the base 3 and base plate 17 do not change. That is, the relative positions of the base 3 and the cap portion 134 are fixed. The housing 2 is movable relative to the base 3. By moving the housing 2 relative to the base 3, the amount of protrusion of the rotary cutter 4 from the lower surface of the base 3 is adjusted. The operator can smoothly move the housing 2 with respect to the base 3 while the relative positions of the base 3 and the cap portion 134 are fixed by the telescopic hose 18 . The dust box 7 is fixed to the housing 2. Therefore, the telescopic hose 18 allows the operator to smoothly change the relative position between the cap portion 134 and the dust box 7. Further, even if the housing 2 is moved relative to the base 3, the relative position between the base 3 and the cap portion 134 does not change, so the operator can connect the joint portion 444 and the cap portion 134 during the mounting operation. , the base 3 and the mounting portion 414 can be brought into contact with each other.

[Sixth embodiment]
A sixth embodiment will be described. In the following description, the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description of the components will be simplified or omitted.

<Dust removal device>
FIG. 17 is a schematic diagram showing the cutting operation according to this embodiment. The mounting device 404 including the mounting section 414 is detachable from the dust collector 21 . As shown in FIG. 17, the placing operation may be performed with the placing device 404 removed from the dust collector 21. The joint portion 444 of the mounting device 404 and the suction port 28 of the dust collector 21 are connected via the dust collection hose 35. In the example shown in FIG. 17, the dust collector 21 is installed on the floor of the workplace. The mounting device 404 is installed on the workbench B.

<Effect>
As explained above, in this embodiment, the mounting device 404 including the mounting section 414 is detachable from the dust collector 21. In this embodiment, the placement operation is performed with the placement device 404 including the placement section 41 being removed from the dust collector 21 .

With the above configuration, the operator can place the placing section 414 at any position. Thereby, the operator can smoothly place the power tool 1C on the placing portion 414.

1A...Electric tool, 1B...Electric tool, 1C...Electric tool, 2...Housing, 2A...Gear accommodating part, 2B...Motor accommodating part, 2C...Grip part, 3...Base, 4...Rotary cutter, 5...Battery mounting part , 6...Trigger lever, 7...Dust box (second dust collection part), 8...Motor, 9...Front side support part, 10...Rear side support part, 11...Cover, 12...Battery pack, 13...Cap part, 14... Opening, 15... Opening/closing valve, 16... Pipe member, 17... Base plate, 18... Telescopic hose, 21... Dust collector, 22... Tank section, 23... Main body section, 24... Latch, 25... Caster, 26... Suction cylinder, 27... Tank (first dust collection part), 28... Suction port, 29... Main body housing, 30... Operation panel, 31... Switch button (input part), 32... Handle, 33... Main power switch, 34... Suction force adjustment switch, 35... Dust collection hose, 36... Sensor (placement sensor), 37... Controller, 38... Motor (suction part), 39... Switch (connection sensor), 40... Placement device, 41... Placement part, 42... Legs Part, 43...Opening, 44...Joint part, 45...Operation member, 45A...Cylindrical part, 45B...Rod part, 46...Coil spring, 100...Dust removal device, 101...Dust removal device, 102...Dust removal device, 103 ...dust removal device, 104...dust removal device, 133...cap part, 134...cap part, 143...opening, 144...opening, 153...on/off valve, 154...on/off valve, 401...mounting device, 402...mounting device , 403... Placement device, 404... Placement device, 411... Placement part, 412... Placement part, 413... Placement part, 414... Placement part, 421... Leg part, 422... Lifting mechanism, 423... Leg Part, 424... Leg part, 431... Opening, 432... Opening, 433... Opening, 434... Opening, 441... Joint part, 442... Joint part, 443... Joint part, 444... Joint part, 473... Support plate part, B ...Workbench, W...Work material.

Claims (20)

1. A mounting section;
   a second dust collector, which is disposed in the placement section and collects dust generated from the first dust collection section of the dust collector and the power tool in conjunction with the placement operation in which the power tool is placed on the placement section; a joint part that connects the parts;
   a suction unit that is disposed in the dust collector and starts a suction operation so that the dust is transferred from the second dust collection unit to the first dust collection unit using the placement operation as a trigger;
   Dust removal equipment.
2. The power tool includes the second dust collecting section.
   The dust removal device according to claim 1.
3. After the suction operation is performed with the power tool placed on the mounting portion, the suction operation is stopped.
   The dust removal device according to claim 1 or 2.
4. the suction operation is stopped while the power tool is placed on the placement section;
   The dust removal device according to claim 3.
5. The suction operation is stopped using a lift operation in which the electric tool moves away from the mounting portion as a trigger.
   The dust removal device according to claim 4.
6. The mounting unit is supported by the dust collector,
   The dust removal device according to any one of claims 1 to 5.
7. The placement unit is removable from the dust collector,
   The dust removal device according to claim 6.
8. The placing operation is performed while the placing unit is removed from the dust collector.
   The dust removal device according to claim 7.
9. The dust collector includes the mounting section,
   The dust removal device according to any one of claims 1 to 5.
10. a cap part connected to the second dust collection part and having a passage through which the dust passes;
    the joint part is connected to the cap part,
    The dust removal device according to any one of claims 1 to 9.
11. The cap section is connected to the second dust collecting section via a telescopic hose.
    The dust removal device according to claim 10.
12. comprising an on-off valve that opens and closes the passage of the cap portion,
    When the power tool is not placed on the placement part, the passage is closed by the on-off valve,
    the passage is opened in a state in which the power tool is placed on the placement section;
    The dust removal device according to claim 10 or 11.
13. The dust collector has a suction port connected to the first dust collector,
    comprising a dust collection hose connecting the suction port and the joint part,
    The dust transferred from the second dust collection section to the first dust collection section passes through the dust collection hose.
    The dust removal device according to any one of claims 1 to 12.
14. an input unit disposed on the surface of the dust collector and operated to switch between starting and stopping the suction operation;
    the input section is operated in conjunction with the placement operation;
    The dust removal device according to any one of claims 1 to 13.
15. an operating member supported by the joint section and capable of operating the input section;
    The operation member is moved by at least a portion of the power tool while in contact with the input section in conjunction with the positioning operation, and operates the input section.
    The dust removal device according to claim 14.
16. The power tool moves in a state of contacting the input section in conjunction with the placing operation, and operates the input section.
    The dust removal device according to claim 15.
17. comprising a placement sensor that detects that the power tool is placed on the placement section,
    The suction unit starts the suction operation when it is determined that the power tool is placed on the placement unit based on the detection data of the placement sensor.
    The dust removal device according to any one of claims 1 to 16.
18. The placement sensor is placed in the placement section,
    The dust removal device according to claim 17.
19. The first dust collecting section and the second dust collecting section are connected in conjunction with the placing operation,
    comprising a connection sensor that detects that the first dust collection section and the second dust collection section are connected,
    The suction unit starts the suction operation when it is determined that the first dust collection unit and the second dust collection unit are connected based on the detection data of the connection sensor.
    The dust removal device according to any one of claims 1 to 16.
20. The upper surface of the mounting portion includes an inclined surface,
    The power tool has a cap part connected to the second dust collection part and having a passage through which the dust passes,
    The joint part is arranged below an opening of a cap part of the power tool placed on the mounting part in the direction of inclination of the inclined surface.
    The dust removal device according to claim 19.
    

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