WO2023127926A1 - Work machine - Google Patents
Work machine Download PDFInfo
- Publication number
- WO2023127926A1 WO2023127926A1 PCT/JP2022/048414 JP2022048414W WO2023127926A1 WO 2023127926 A1 WO2023127926 A1 WO 2023127926A1 JP 2022048414 W JP2022048414 W JP 2022048414W WO 2023127926 A1 WO2023127926 A1 WO 2023127926A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dust collection
- dust
- collection case
- filter
- case
- Prior art date
Links
- 239000000428 dust Substances 0.000 claims abstract description 244
- 230000002093 peripheral effect Effects 0.000 abstract description 14
- 210000000078 claw Anatomy 0.000 description 17
- 238000012856 packing Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/24—Hand-supported suction cleaners
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/20—Means for cleaning filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
Definitions
- the present invention relates to a working machine such as a cleaner.
- the work machine described in Patent Document 1 below includes a dust collection case, a filter provided in the dust collection case, a dust removal mechanism for removing dust on the surface of the filter, and a mechanism that allows the dust in the dust collection case to flow back from the suction port. and a regulation unit that regulates the
- Patent Document 1 for example, if the diameter of the dust collection case is reduced for the purpose of miniaturization, the inside of the dust collection case is clogged with dust, making it difficult to remove the dust from the inside of the dust collection case, resulting in poor workability. was there.
- the work machine includes a motor, a fan that generates an airflow by driving force of the motor, a body housing that accommodates the motor and the fan and has an air intake serving as an inlet for the airflow, and the air intake.
- a dust collector which has a connected discharge port and a suction port disposed on one side of the discharge port in the first direction and serving as an inlet for the airflow, and collects dust that flows in with the airflow.
- the drawer portion is arranged adjacent to the suction port, allows the airflow flowing from the outside of the dust collection case to the inside of the dust collection case through the suction port, and allows the air flow to flow into the dust collection case through the suction port. It has a restricting portion that restricts the dust from flowing out from the inside to the outside of the dust collecting case.
- the work machine includes a motor having a drive shaft, a fan attached to the drive shaft and generating an air flow by the driving force of the motor, an air intake which accommodates the motor and the fan, and serves as an inlet for the air flow.
- a main body housing having a mouth, a suction port having a tubular shape extending in the axial direction of the drive shaft and arranged at one end in the axial direction to serve as an inlet for the air flow, and a suction port arranged at the other end in the axial direction.
- a dust collection case for collecting dust flowing in with the air flow, and the dust collection case positioned between the suction port and the discharge port.
- a filter portion disposed inside the case for collecting dust contained in the airflow flowing from the suction port to the discharge port; a drawer portion disposed inside the dust collection case and moving relative to the dust collection case toward the other side in the axial direction to pull out the dust in the dust collection case from the discharge port.
- the present invention may be expressed as an "electric working machine", an “electric device”, or the like, and those expressed in such terms are also effective as aspects of the present invention.
- the working machine which can remove the dust in a dust collection case easily, and improved workability can be provided.
- FIG. 1 is a perspective view of a working machine 1 according to an embodiment of the present invention
- FIG. 3 is a perspective view of the dust collection case 30 and the drawer 40 separated from the main body housing 10 in the state of FIG. 2
- FIG. 4 is an exploded perspective view of the dust collection case 30, the drawer portion 40, and the filter portion 60 with the right half shown in FIG. 3 cut;
- (A) is a right side view of the working machine 1;
- (B) is a plan view of the working machine 1;
- (A) is a cross-sectional view taken along the line AA in FIG. 5(B).
- (B) is an enlarged view of the B portion of FIG. 6(A).
- FIG. (C) is a partial cross-sectional view of a state in which the restricting portion 50 is opened in FIG. 6(A).
- Sectional drawing which separated the dust collection case 30 and the drawer part 40 from the main body housing 10 in FIG. (A) is a front view of the drawer portion 40.
- FIG. (B) is a front view showing the front end of the drawer 40.
- FIG. (C) is a CC cross-sectional view of FIG. 6(A).
- the present embodiment relates to a working machine 1.
- the work machine 1 is a cordless type cleaner (dust collector) that operates with power from a battery pack 19 .
- the front-rear direction is a direction parallel to the drive shaft 72 a of the motor 72 .
- the front-rear direction corresponds to the first direction.
- the front side corresponds to one side in the first direction.
- the rear side corresponds to the other side in the first direction.
- the left-right direction is a direction perpendicular to the imaginary plane on which the drive shaft 72a and the central axis of the handle portion 12 exist.
- the work machine 1 has a body housing 10 .
- the body housing 10 is formed by, for example, fixing two left and right resin molded bodies to each other and integrating them by screwing or the like.
- the body housing 10 includes a motor accommodating portion 11 , a handle portion 12 and a battery pack mounting portion 13 .
- the motor accommodating portion 11 has a tubular shape, for example, a substantially cylindrical shape, with a center axis parallel to the front-rear direction. As shown in FIGS. 6A and 6B, the motor accommodating portion 11 accommodates the fan motor unit 70 therein.
- the motor housing portion 11 has an air inlet 14 in front of the fan motor unit 70 .
- the intake port 14 serves as an inlet for air flow generated by the fan 73 of the fan motor unit 70 .
- the motor accommodating portion 11 has a plurality of exhaust ports 15 on both left and right sides thereof.
- the exhaust port 15 serves as an outlet for the airflow generated by the fan 73 .
- the motor housing portion 11 has a notch portion 16 at its front end portion.
- the notch portion 16 is a portion through which the connection portion 46 of the drawer portion 40 is passed.
- the motor housing portion 11 has a step portion 17 behind the notch portion 16 .
- the stepped portion 17 engages (butts against) the stepped portion 47 of the connecting portion 46 .
- the handle portion 12 extends rearward from the central portion in the left-right direction of the upper portion of the rear end of the motor accommodating portion 11 .
- the handle portion 12 has a front portion that extends substantially parallel to the front-rear direction, and a rear portion that extends rearward while gently bending downward.
- the battery pack mounting portion 13 continues to the lower rear end portion of the handle portion 12 .
- Battery pack mounting portion 13 detachably mounts battery pack 19 .
- the battery pack 19 can be attached to the battery pack attachment portion 13 by obliquely sliding from the rear upper direction to the front lower direction.
- Motor 72 is driven by the power of battery pack 19 attached to battery pack attachment portion 13 .
- the work machine 1 has latch members 21 at the upper and lower portions of the motor accommodating portion 11, respectively.
- the latch member 21 is a member for locking the dust collection case 30 to the main body housing 10 .
- the latch member 21 is biased by a spring 24 in a direction protruding radially outward from the motor accommodating portion 11 .
- the latch member 21 has a pressing portion 22 and a claw portion 23 .
- the pressing portion 22 is a portion that the operator presses to release the lock by the latch member 21 .
- the claw portion 23 is a portion that engages with the latch engagement hole 36 of the dust collection case 30 to lock the dust collection case 30 .
- the work machine 1 has a switch panel 25 on the upper surface of the handle portion 12 .
- the switch panel 25 is provided with a strong button 26, a standard/weak button 27, and an off button 28.
- a strong button 26 When the strong button 26 is pressed, the motor 72 rotates at high speed.
- the standard/weak button 27 switches between medium-speed rotation and low-speed rotation of the motor 72 each time it is pressed.
- the off button 28 is a button for stopping the motor 72 .
- the work machine 1 has a dust collection case 30 .
- the dust collection case 30 is, for example, a single resin molding.
- the dust collection case 30 is also called a dust case.
- the dust collection case 30 has a nozzle portion 31 , a dust chamber 32 , a suction port 33 (suction portion), and a discharge port 34 .
- the nozzle portion 31 has a tubular shape with a center axis parallel to the front-rear direction, and is positioned at the front end portion of the dust collection case 30 .
- the nozzle part 31 is a part forming the suction port 33 .
- the entire inside of the nozzle portion 31 is the suction port 33 .
- the suction port 33 serves as an inlet for the airflow generated by the fan 73 into the dust collection chamber 32 .
- the suction port 33 is positioned forward of the discharge port 34 .
- the dust collection chamber 32 has a cylindrical shape with a center axis parallel to the front-rear direction, and is connected to the rear of the nozzle portion 31 .
- the outer peripheral surface and the inner peripheral surface of the dust collection chamber 32 have a shape (tapered shape) in which the diameter decreases toward the front.
- the dust collection chamber 32 has a larger diameter than the nozzle portion 31 .
- the dust collection chamber 32 has an inner dimension larger than that of the nozzle portion 31 when viewed from the front.
- the dust collection chamber 32 is positioned between the nozzle portion 31 and the discharge port 34 .
- the dust collection chamber 32 collects (accumulates) dust that flows from the suction port 33 along with the air flow.
- the outlet 34 is located at the rear end of the dust collection chamber 32 .
- the outlet 34 connects (communicates) with the inlet 14 of the body housing 10 .
- the discharge port 34 is a portion for discharging dust in the dust collection chamber 32 to the outside, and is also a passage portion for passing the air flow generated by the fan 73 from the dust collection chamber 32 to the body housing 10 .
- the dust collection case 30 has extensions 35 at upper and lower rear ends.
- the extension part 35 is a rearward extension of a part of the cylindrical shape of the dust collection case 30 .
- Extension 35 has a latch engagement hole 36 .
- the latch engagement hole 36 is a portion for hooking the claw portion 23 of the latch member 21 .
- the dust collection case 30 has a cover portion 37 on the right portion of the rear end.
- the cover portion 37 is a portion that covers the connection portion 46 of the drawer portion 40 .
- a rear end portion of the cover portion 37 serves as a hook portion 38 .
- the hook portion 38 is a portion for hooking the claw portion 49 of the drawer portion 40 to lock the drawer portion 40 to the dust collection case 30 .
- the working machine 1 has a drawer section 40 .
- the drawer 40 is arranged inside the dust collection chamber 32 .
- the drawer 40 is a member that pulls out (scrapes) the dust in the dust collection chamber 32 from the discharge port 34 by moving backward relative to the dust collection case 30 .
- the drawer portion 40 extends forward from the filter portion 60 . Further, the front end portion of the drawer portion 40 abuts against the inner surface of the front wall portion of the dust collection chamber 32 (especially around the suction port 33).
- the lead-out portion 40 has a base portion 41, three pillar portions 42, an intermediate connecting portion 43, and a front end connecting portion 44 as a frame portion made of, for example, a resin molding.
- the base portion 41 is a plate-like annular portion perpendicular to the front-rear direction.
- the outer edge of the base 41 extends along the inner peripheral surface of the dust collection case 30 .
- the front surface of the base portion 41 engages with the step portion 39 on the inner surface of the dust collection case 30 as shown in FIG.
- the rear surface of the base portion 41 engages (abuts) the front end portion of the main body housing 10 as shown in FIG. 7 and is pressed forward. That is, the rear end portion of the drawer portion 40 contacts the body housing 10 and is pressed forward toward the dust collection chamber 32 .
- the three pillars 42 extend forward from the base 41 respectively.
- the three pillars 42 are provided at approximately equal angular intervals when viewed from the front.
- One of the pillars 42 is positioned directly above the center axis of the dust collection chamber 32 . In other words, the pillar 42 does not exist within a range of about 120 degrees centered on the central axis of the dust collection chamber 32 .
- the intermediate connecting portion 43 connects the lengthwise intermediate portions of the three pillars 42 to each other in a substantially arc shape around the central axis of the dust collection chamber 32 .
- the intermediate connection portion 43 connects portions of the three pillars 42 near the center axis of the dust collection chamber 32 (ends on the center axis side).
- the intermediate connecting portion 43 is not closed when viewed from the front, and the intermediate connecting portion 43 does not exist within a range of approximately 120 degrees centered directly below the central axis of the dust collection chamber 32 .
- the front end connecting portion 44 connects the front end portions of the three pillars 42 in the longitudinal direction to each other in a substantially circular shape around the central axis of the dust collection chamber 32 .
- the front end connecting portion 44 has a smaller diameter than the intermediate connecting portion 43 .
- the lead-out portion 40 has a holding portion 45 connected to the front end connecting portion 44 .
- the holding portion 45 is located at the front end portion of the column portion 42 located directly above the central axis of the dust collection chamber 32 .
- the holding portion 45 has a cylindrical shape with a center axis parallel to the left-right direction.
- the holding portion 45 is a portion that holds the mounting portion 52 of the restricting portion 50 .
- the front end connecting portion 44 is connected to the lower right end portion of the holding portion 45. As shown in FIG. Therefore, when viewed from the right, the right end opening of the holding portion 45 is exposed above the front end connecting portion 44 . This facilitates attachment and detachment of the restricting portion 50 .
- the lead-out portion 40 has a restriction portion 50 .
- the restricting portion 50 is made of an elastic body such as rubber.
- the restricting portion 50 is arranged adjacent to the rear of the rear end portion of the suction port 33 . That is, the front end portion of the lead-out portion 40 contacts the rear end portion of the nozzle portion 31 .
- the regulation part 50 is a valve for preventing backflow of dust.
- the restricting portion 50 allows an air flow from the outside of the dust collection case 30 to the inside of the dust collection case 30 (inside the dust collection chamber 32 ) through the suction port 33 , and allows the air flow to flow into the dust collection case 30 through the suction port 33 . (inside the dust collection chamber 32 ) to the outside of the dust collection case 30 .
- the restriction portion 50 has a cover portion 51 and an attachment portion 52 .
- the cover portion 51 contacts the rear end portion of the nozzle portion 31 or the inner surface of the front wall portion of the dust collection chamber 32 so as to block the suction port 33 .
- This contact force is applied by pressing the back surface of the base portion 41 forward by the body housing 10 as described above.
- the attachment portion 52 is held inside the holding portion 45 .
- the restricting portion 50 can be attached to the holding portion 45 by fitting the mounting portion 52 into the holding portion 45 from the right side.
- the cover portion 51 is rotated by the airflow flowing from the outside of the dust collection case 30 to the inside of the dust collection case 30 (inside the dust collection chamber 32) through the suction port 33, with the mounting portion 52 as a fulcrum, as shown in FIG. can be deformed so as to be separated from the suction port 33 as shown in FIG. Since the front surface of the cover portion 51 contacts with the periphery of the suction port 33, the cover portion 51 does not deform forward (non-deformable).
- the drawer portion 40 has a connecting portion 46 extending rearward from the right portion of the base portion 41 .
- the connecting portion 46 has a plate shape perpendicular to the vertical direction.
- the connecting portion 46 extends radially outward of the body housing 10 through the notch 16 of the body housing 10 shown in FIG. 3 and then extends rearward.
- the connecting portion 46 is covered with the cover portion 37 of the dust collection case 30 .
- the rotational position of the drawer portion 40 with respect to the dust collection case 30 is determined.
- the connecting portion 46 with the notch portion 16 By engaging (fitting) the connecting portion 46 with the notch portion 16 , the rotational positions of the dust collection case 30 and the drawer portion 40 with respect to the main body housing 10 are determined.
- the connecting portion 46 has a stepped portion 47 .
- the stepped portion 47 engages with the stepped portion 17 of the body housing 10 .
- the drawer portion 40 has a knob portion 48 .
- the knob portion 48 continues to the rear end of the connecting portion 46 .
- the grip portion 48 is a portion held by an operator when pulling out the drawer portion 40 from the dust collection case 30 to the rear.
- the knob portion 48 is connected to the base portion 41 by the connecting portion 46 .
- the knob portion 48 has a plate-like shape perpendicular to the left-right direction or a plate-like shape along the outer peripheral surface of the motor housing portion 11 and is close to the right front portion of the outer peripheral surface of the motor housing portion 11 .
- the knob portion 48 is provided with a claw portion 49 protruding rightward.
- the claw portion 49 is a portion for hooking the hook portion 38 of the dust collection case 30 .
- the drawer portion 40 is locked to the dust collection case 30 by hooking the hook portion 38 on the claw portion 49 .
- the drawer portion 40 has a dust removal packing 54 as a dust removal portion. Dust removal packing 54 is attached to base 41 .
- the dust removal packing 54 is formed in an annular shape along the contour of the filter portion 60 when viewed from the front.
- the dust removal packing 54 has a ring portion 55 and dust removal blades 56 .
- the ring portion 55 is a circular portion that fits into the inner peripheral portion of the base portion 41 .
- the dust removing blade 56 extends radially inward from the ring portion 55 .
- eight dust removing blades 56 are arranged in a ring at equal angular intervals along the outer shape of the filter portion 60 when viewed from the front.
- the dust removing blade 56 slides forward on the outer surface of the filter 61 when the dust collecting case 30 and the drawer portion 40 are taken out (removed) forward from the main body housing 10 , thereby depositing on the outer surface (periphery) of the filter 61 ( (adhesion) is removed.
- the work implement 1 has a filter section 60 .
- the filter unit 60 is arranged inside the dust collection chamber 32 so as to be positioned between the suction port 33 and the discharge port 34 and collects dust contained in the airflow flowing from the suction port 33 to the discharge port 34 .
- the filter part 60 is attached to the body housing 10 .
- the filter section 60 has a filter 61 .
- the filter 61 is bag-shaped with an opening at the rear end. Filter 61 traps dust while allowing airflow to pass through.
- the filter section 60 has a frame member 62 .
- the frame member 62 is, for example, a resin molding.
- the frame member 62 supports the filter 61 in a cylindrical shape with a closed front end and an opening at the rear end.
- the frame member 62 includes a base portion 63 , a column portion 64 and a connecting portion 65 .
- the base 63 has a cylindrical shape with a central axis parallel to the front-rear direction.
- Four claw portions 63a for locking the holder 67 are provided on the base portion 63 at equal angular intervals when viewed from the front.
- the column portion 64 extends forward from the base portion 63 .
- eight pillars 64 are provided at equal angular intervals when viewed from the front.
- the connecting portion 65 connects the front ends of the eight pillars 64 to each other in a ring shape.
- the frame member 62 is arranged concentrically with the dust collection case 30 when viewed from the front.
- the filter 61 is less likely to be clogged with dust accumulated on the lower side of the dust collection case 30, and clogging of the filter 61 is suppressed. be done.
- the filter section 60 has a holder 67 .
- the holder 67 is, for example, a resin molding.
- the holder 67 has a cylindrical shape whose central axis is parallel to the front-rear direction.
- the holder 67 is a member for holding the rear end portion of the filter 61 between itself and the base portion 63 of the frame member 62 .
- the holder 67 has four cutouts 68 that engage with the claws 63a of the frame member 62 at equal angular intervals when viewed from the front.
- the holder 67 is locked to the frame member 62 by hooking the claw portion 63 a on the notch portion 68 .
- the filter section 60 has a ring-shaped elastic member 69 attached to the rear end of the holder 67 . As shown in FIG. 7, the elastic member 69 airtightly closes the space between the rear end portion of the holder 67 and the front portion of the main body housing 10 over the entire periphery of the intake port 14 .
- the filter unit 60 is attached to the front end portion of the main body housing 10 by aligning it with the front end portion of the main body housing 10 and rotating it clockwise by a predetermined angle when viewed from the front. In this state, the opening of the filter 61 is connected (communicated) with the intake port 14 so that the airflow passes through the filter 61 from the outside to the inside.
- the work machine 1 has a fan motor unit 70 inside the motor housing portion 11 .
- a commercially available product can be used as the fan motor unit 70 .
- a fan motor unit 70 is a unit in which a motor 72 , a fan 73 and a substrate 74 are accommodated in a case 71 .
- the motor 72 is, for example, an inner rotor type brushless motor, and has a drive shaft 72a.
- the fan 73 is directly connected to the drive shaft 72a in front of the main body of the motor 72 (a portion of the motor 72 excluding the drive shaft 72a), and rotates together with the motor 72. As shown in FIG. The fan 73 is rotated by the driving force of the motor 72 to generate an airflow.
- the case 71 has an air intake port 71a (FIG. 7) for taking in an air flow in the front part.
- the board 74 is held in the rear part of the main body of the motor 72 in a posture perpendicular to the front-rear direction.
- the board 74 mounts elements such as switching elements necessary for driving the motor 72 .
- a ring-shaped elastic member 75 is provided between the outer front surface of the case 71 and the inner surface of the front wall portion of the motor housing portion 11 .
- the elastic member 75 airtightly closes the space between the front outer surface of the case 71 and the inner surface of the front wall portion of the motor accommodating portion 11 along the entire periphery of the intake port 14 and the air intake port 71a.
- the motor 72 When the strong button 26 or normal/weak button 27 is pressed, the motor 72 is activated. A fan 73 rotates together with the motor 72 to generate an air flow. This airflow enters the dust collection chamber 32 from the suction port 33, passes through the filter 61, passes through the discharge port 34, the air intake port 14, and the air intake port 71a, and is sucked into the fan 73. After cooling, the air is discharged out of the case 71 and out of the body housing 10 through the exhaust port 15 . Dust enters the dust collection chamber 32 from the suction port 33 together with the airflow, but cannot pass through the filter 61 and is collected by the filter 61 and accumulated in the dust collection chamber 32 .
- Dust accumulated in the dust collection chamber 32 is discharged (removed) as follows.
- the dust collection case 30 is moved forward relative to the main body housing 10 while pressing the pressing portions 22 of the upper and lower latch members 21 of the main body housing 10 to release the locking by the latch members 21 . Since the hook portion 38 of the dust collection case 30 is hooked on the claw portion 49 of the drawer portion 40 , the drawer portion 40 also moves forward relative to the main body housing 10 together with the dust collection case 30 . At this time, the dust removal blade 56 of the drawer 40 slides toward the outer peripheral surface of the filter 61 to remove dust accumulated on the outer peripheral surface of the filter 61 . The dust removed here falls into the dust collecting case 30 .
- the knob portion 48 is held and the drawer portion 40 is moved rearward relative to the dust collection case 30, and the drawer portion 40 is moved. It is removed (taken out) from the dust collection case 30 through the outlet 34 .
- the drawer portion 40 especially the front end connecting portion 44 draws out (scrapes out) the dust in the dust collection chamber 32 through the discharge port 34 .
- the operation of removing the drawer 40 from the dust collection case 30 is preferably performed on a trash can or a garbage bag with the outlet 34 directed in the direction of gravity.
- the connecting portion 46 of the drawer portion 40 and the cover portion 37 of the dust collection case 30 are aligned with each other, and the drawer portion 40 is directed toward the inside of the dust collection case 30.
- the dust collection case 30 can be moved forward in a straight line, and the hook portion 38 of the dust collection case 30 can be hooked on the claw portion 49 of the drawer portion 40 .
- the connecting portion 46 of the drawer portion 40 and the cutout portion 16 of the main body housing 10 are aligned with each other, and the dust collection case 30 is directed toward the front end portion of the main body housing 10 . , so that the claws 23 of the latch member 21 on the main body housing 10 side are hooked to the latch engagement holes 36 of the dust collection case 30 .
- the present embodiment even when the dust collection case 30 has an elongated shape, dust can be easily removed from the inside of the dust collection chamber 32, resulting in good workability.
- the present embodiment enables the dust collection case 30 to have an elongated shape, thereby achieving a reduction in size in the radial direction.
- the drawer part 40 has a regulation part 50 at its front end that functions as a valve that prevents dust from flowing out from the dust collection chamber 32 toward the suction port 33 . Further, the drawer portion 40 has a dust removal packing 54 for removing dust from the filter 61 . That is, the drawer portion 40 is not a dedicated member for drawing dust out of the dust collection chamber 32 . Therefore, compared to the case of separately providing a dedicated member for extracting dust from the dust collection chamber 32, it is possible to suppress an increase in the number of parts, an increase in product weight, and cost.
- the drawer part 40 In order to close the suction port 33 with the restriction part 50, the drawer part 40 needs to extend to the front end inside the dust collection chamber 32. preferably extends to the front end within dust collection chamber 32 . That is, by incorporating the function of the restricting portion 50, which must extend to the front end portion in the dust collection chamber 32, into the drawer portion 40, the drawer portion 40 closes the suction port 33 and prevents dust from inside the dust collection chamber 32. can be suitably realized.
- the drawn-out portion 40 has the restricting portion 50, it is not necessary to fix the restricting portion 50 to the dust collecting case 30 by screwing or the like, which facilitates assembly.
- the restricting portion 50 can be easily attached to the holding portion 45 by fitting the mounting portion 52 into the holding portion 45 from the right side. If there is a step of fixing the restricting portion 50 to the dust collection case 30 by screwing or the like, the assembling performance is poor, especially when the dust collection case 30 has an elongated shape. Problems can be solved well.
- the drawer portion 40 has a dust removal packing 54, and when the drawer portion 40 is removed from the main body housing 10 together with the dust collection case 30, the dust removal blade 56 slides on the outer peripheral surface of the filter 61 and contacts the outer peripheral surface of the filter 61. Remove accumulated dust. Therefore, the filter 61 is dust-removed in the process of removing the dust inside the dust-collecting case 30, and workability is good.
- the drawer 40 may have a structure (brush or elastic blade) for removing dust from the inner wall of the dust collection chamber 32 .
- This dust removing structure is preferably located at the front end of the drawer portion 40 .
- This dust removing structure may be formed integrally with the restricting portion 50 . For example, if the size of the cover portion 51 is enlarged and brought into contact with the inner wall of the dust collection chamber 32, the inner wall of the dust collection chamber 32 becomes a simple dust removal structure.
- the work machine of the present invention may be one that operates on power from a battery incorporated in the body housing, or may be a corded type that operates on power from an external AC power source.
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Abstract
Provided is a work machine capable of easily removing dust in a dust collecting case and improving workability. In order to discharge the dust accumulated in a dust collection chamber 32, a work machine 1 first moves a dust collection case 30 and a drawn-out portion 40 forward relative to a body housing 10. At this time, the dust removal blade 56 of the drawn-out portion 40 slides forward on the outer peripheral surface of a filter 61 to remove dust accumulated on the outer peripheral surface of the filter 61. The removed dust falls into the dust collection case 30. Subsequently, the drawn-out portion 40 is moved rearward relative to the dust collection case 30 to remove the drawn-out portion 40 from the dust collection case 30 through a discharge port 34. At this time, the drawn-out portion 40 draws out the dust in the dust collection chamber 32 through the discharge port 34. The drawn-out portion 40 has a restricting portion 50 at the front end thereof that prevents air from flowing back from the dust collection chamber 32 to a suction port 33.
Description
本発明は、クリーナ等の作業機に関する。
The present invention relates to a working machine such as a cleaner.
下記特許文献1に記載の作業機は、集塵ケースと、集塵ケース内に設けられるフィルタと、フィルタ表面の塵埃を除塵する除塵機構と、集塵ケース内の塵埃が吸込口から逆流することを規制する規制部と、を有する。
The work machine described in Patent Document 1 below includes a dust collection case, a filter provided in the dust collection case, a dust removal mechanism for removing dust on the surface of the filter, and a mechanism that allows the dust in the dust collection case to flow back from the suction port. and a regulation unit that regulates the
特許文献1の構成において、例えば小型化の目的で集塵ケースを細径にすると、集塵ケース内に塵埃が詰まって集塵ケース内から塵埃を除去するのが難しく、作業性が悪いという課題があった。
In the configuration of Patent Document 1, for example, if the diameter of the dust collection case is reduced for the purpose of miniaturization, the inside of the dust collection case is clogged with dust, making it difficult to remove the dust from the inside of the dust collection case, resulting in poor workability. was there.
本発明の目的は、集塵ケース内の塵埃を簡易に除去可能として作業性を向上した作業機を提供することである。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a work machine that can easily remove dust in a dust collection case to improve workability.
本発明のある態様は、作業機である。この作業機は、モータと、前記モータの駆動力により空気流を生じるファンと、前記モータ及び前記ファンを収容するとともに、前記空気流の入口となる吸気口を有する本体ハウジングと、前記吸気口と接続する排出口と、前記排出口よりも第1方向の一方側に配置されて前記空気流の入口となる吸込口とを有し、前記空気流とともに流入する塵埃を内部に集塵する集塵ケースと、前記集塵ケース内部に配置され、前記集塵ケースに対し前記第1方向の他方側へ相対移動することで前記集塵ケース内の前記塵埃を引き出す引出部と、を有し、前記引出部は、前記吸込口に隣接して配置され、前記吸込口を介して前記集塵ケース外部から前記集塵ケース内部へ流れる前記空気流を許容し、前記吸込口を介して前記集塵ケース内部から前記集塵ケース外部へ前記塵埃が流出することを規制する規制部を有する。
One aspect of the present invention is a working machine. The work machine includes a motor, a fan that generates an airflow by driving force of the motor, a body housing that accommodates the motor and the fan and has an air intake serving as an inlet for the airflow, and the air intake. A dust collector which has a connected discharge port and a suction port disposed on one side of the discharge port in the first direction and serving as an inlet for the airflow, and collects dust that flows in with the airflow. a case; and a drawer portion disposed inside the dust collection case that draws out the dust in the dust collection case by relatively moving to the other side in the first direction with respect to the dust collection case, The drawer portion is arranged adjacent to the suction port, allows the airflow flowing from the outside of the dust collection case to the inside of the dust collection case through the suction port, and allows the air flow to flow into the dust collection case through the suction port. It has a restricting portion that restricts the dust from flowing out from the inside to the outside of the dust collecting case.
本発明の別の態様は、作業機である。この作業機は、駆動軸を有するモータと、前記駆動軸に取り付けられ、前記モータの駆動力により空気流を生じるファンと、前記モータ及び前記ファンを収容するとともに、前記空気流の入口となる吸気口を有する本体ハウジングと、前記駆動軸の軸線方向に延びる筒形状を有し、前記軸線方向の一端に配置されて前記空気流の入口となる吸込口と、前記軸線方向の他端に配置されて前記吸気口と接続する排出口とを有し、前記空気流とともに流入する塵埃を内部に集塵する集塵ケースと、前記吸込口と前記排出口との間に位置するように前記集塵ケースの内部に配置され、前記吸込口から前記排出口へ流れる空気流に含まれる塵埃を捕集するフィルタ部と、少なくとも一部が前記フィルタ部よりも前記軸線方向の一方側に位置するように前記集塵ケース内部に配置され、前記集塵ケースに対し前記軸線方向の他方側へ相対移動することで前記集塵ケース内の前記塵埃を前記排出口から引き出す引出部と、を有する。
Another aspect of the present invention is a work machine. The work machine includes a motor having a drive shaft, a fan attached to the drive shaft and generating an air flow by the driving force of the motor, an air intake which accommodates the motor and the fan, and serves as an inlet for the air flow. a main body housing having a mouth, a suction port having a tubular shape extending in the axial direction of the drive shaft and arranged at one end in the axial direction to serve as an inlet for the air flow, and a suction port arranged at the other end in the axial direction. a dust collection case for collecting dust flowing in with the air flow, and the dust collection case positioned between the suction port and the discharge port. a filter portion disposed inside the case for collecting dust contained in the airflow flowing from the suction port to the discharge port; a drawer portion disposed inside the dust collection case and moving relative to the dust collection case toward the other side in the axial direction to pull out the dust in the dust collection case from the discharge port.
本発明は「電動作業機」や「電気機器」等と表現されてもよく、そのように表現されたものも本発明の態様として有効である。
The present invention may be expressed as an "electric working machine", an "electric device", or the like, and those expressed in such terms are also effective as aspects of the present invention.
本発明によれば、集塵ケース内の塵埃を簡易に除去可能として作業性を向上した作業機を提供することができる。
ADVANTAGE OF THE INVENTION According to this invention, the working machine which can remove the dust in a dust collection case easily, and improved workability can be provided.
以下において、各図面に示される同一または同等の構成要素、部材等には同一の符号を付し、適宜重複した説明は省略する。実施の形態は、発明を限定するものではなく例示である。実施の形態に記述されるすべての特徴やその組み合わせは、必ずしも発明の本質的なものであるとは限らない。
Hereinafter, the same or equivalent constituent elements, members, etc. shown in each drawing are denoted by the same reference numerals, and duplication of description will be omitted as appropriate. The embodiments are illustrative rather than limiting of the invention. All features and combinations thereof described in the embodiments are not necessarily essential to the invention.
本実施の形態は、作業機1に関する。作業機1は電池パック19の電力で動作するコードレスタイプのクリーナ(集塵装置)である。
The present embodiment relates to a working machine 1. FIG. The work machine 1 is a cordless type cleaner (dust collector) that operates with power from a battery pack 19 .
図1~図6により、作業機1の互いに直交する前後、上下、左右の各方向を定義する。前後方向は、モータ72の駆動軸72aと平行な方向である。前後方向は、第1方向に対応する。前方側は、第1方向の一方側に対応する。後方側は、第1方向の他方側に対応する。左右方向は、駆動軸72aとハンドル部12の中心軸線とが存在する仮想平面と垂直な方向である。
1 to 6 define front and rear, up and down, and left and right directions of the working machine 1 which are orthogonal to each other. The front-rear direction is a direction parallel to the drive shaft 72 a of the motor 72 . The front-rear direction corresponds to the first direction. The front side corresponds to one side in the first direction. The rear side corresponds to the other side in the first direction. The left-right direction is a direction perpendicular to the imaginary plane on which the drive shaft 72a and the central axis of the handle portion 12 exist.
作業機1は、本体ハウジング10を有する。本体ハウジング10は、例えば左右二分割の樹脂成形体をネジ止め等により互いに固定、一体化したものである。本体ハウジング10は、モータ収容部11、ハンドル部12、電池パック装着部13を含む。
The work machine 1 has a body housing 10 . The body housing 10 is formed by, for example, fixing two left and right resin molded bodies to each other and integrating them by screwing or the like. The body housing 10 includes a motor accommodating portion 11 , a handle portion 12 and a battery pack mounting portion 13 .
モータ収容部11は、中心軸が前後方向と平行な筒形状、例えば略円筒形状を成す。図6(A),(B)に示すように、モータ収容部11は、内部にファンモータユニット70を収容する。
The motor accommodating portion 11 has a tubular shape, for example, a substantially cylindrical shape, with a center axis parallel to the front-rear direction. As shown in FIGS. 6A and 6B, the motor accommodating portion 11 accommodates the fan motor unit 70 therein.
モータ収容部11は、ファンモータユニット70の前方に吸気口14を有する。吸気口14は、ファンモータユニット70のファン73が発生する空気流の入口となる。モータ収容部11は、左右両側面にそれぞれ複数の排気口15を有する。排気口15は、ファン73の発生する空気流の出口となる。
The motor housing portion 11 has an air inlet 14 in front of the fan motor unit 70 . The intake port 14 serves as an inlet for air flow generated by the fan 73 of the fan motor unit 70 . The motor accommodating portion 11 has a plurality of exhaust ports 15 on both left and right sides thereof. The exhaust port 15 serves as an outlet for the airflow generated by the fan 73 .
図3に示すように、モータ収容部11は、前端部に切欠き部16を有する。切欠き部16は、引出部40の連結部46を通す部分である。モータ収容部11は、切欠き部16の後方に段差部17を有する。段差部17は、連結部46の段差部47と係合する(突き当たる)。
As shown in FIG. 3, the motor housing portion 11 has a notch portion 16 at its front end portion. The notch portion 16 is a portion through which the connection portion 46 of the drawer portion 40 is passed. The motor housing portion 11 has a step portion 17 behind the notch portion 16 . The stepped portion 17 engages (butts against) the stepped portion 47 of the connecting portion 46 .
ハンドル部12は、モータ収容部11の後端上部の左右方向中央部から後方に延びる。ハンドル部12は、前部は前後方向と略平行に延び、後部は緩やかに下方に曲がりながら後方に延びる。
The handle portion 12 extends rearward from the central portion in the left-right direction of the upper portion of the rear end of the motor accommodating portion 11 . The handle portion 12 has a front portion that extends substantially parallel to the front-rear direction, and a rear portion that extends rearward while gently bending downward.
電池パック装着部13は、ハンドル部12の後下端部に連なる。電池パック装着部13は、電池パック19を着脱可能に装着する。電池パック19は、後上方向から前下方向に斜めにスライドさせて電池パック装着部13に装着できる。電池パック装着部13に装着された電池パック19の電力によりモータ72が駆動される。
The battery pack mounting portion 13 continues to the lower rear end portion of the handle portion 12 . Battery pack mounting portion 13 detachably mounts battery pack 19 . The battery pack 19 can be attached to the battery pack attachment portion 13 by obliquely sliding from the rear upper direction to the front lower direction. Motor 72 is driven by the power of battery pack 19 attached to battery pack attachment portion 13 .
作業機1は、モータ収容部11の上部と下部にそれぞれラッチ部材21を有する。ラッチ部材21は、集塵ケース30を本体ハウジング10に係止するための部材である。ラッチ部材21は、図6(B)に示すように、バネ24によってモータ収容部11の径方向外側に突出する方向に付勢される。
The work machine 1 has latch members 21 at the upper and lower portions of the motor accommodating portion 11, respectively. The latch member 21 is a member for locking the dust collection case 30 to the main body housing 10 . As shown in FIG. 6B, the latch member 21 is biased by a spring 24 in a direction protruding radially outward from the motor accommodating portion 11 .
ラッチ部材21は、押圧部22及び爪部23を有する。押圧部22は、作業者がラッチ部材21による係止を解除するために押す部分である。爪部23は、集塵ケース30のラッチ係合穴36に引っ掛かって集塵ケース30を係止する部分である。
The latch member 21 has a pressing portion 22 and a claw portion 23 . The pressing portion 22 is a portion that the operator presses to release the lock by the latch member 21 . The claw portion 23 is a portion that engages with the latch engagement hole 36 of the dust collection case 30 to lock the dust collection case 30 .
作業機1は、ハンドル部12の上面に、スイッチパネル25を有する。スイッチパネル25には、強ボタン26、標準/弱ボタン27、切ボタン28が設けられる。強ボタン26を押すと、モータ72が高速回転する。標準/弱ボタン27は、押す度にモータ72の中速回転と低速回転とが切り替わる。切ボタン28は、モータ72を停止させるためのボタンである。
The work machine 1 has a switch panel 25 on the upper surface of the handle portion 12 . The switch panel 25 is provided with a strong button 26, a standard/weak button 27, and an off button 28. - 特許庁When the strong button 26 is pressed, the motor 72 rotates at high speed. The standard/weak button 27 switches between medium-speed rotation and low-speed rotation of the motor 72 each time it is pressed. The off button 28 is a button for stopping the motor 72 .
作業機1は、集塵ケース30を有する。集塵ケース30は、例えば単一の樹脂成形体である。集塵ケース30はダストケースとも称される。集塵ケース30は、ノズル部31、集塵室32、吸込口33(吸込部)、排出口34を有する。
The work machine 1 has a dust collection case 30 . The dust collection case 30 is, for example, a single resin molding. The dust collection case 30 is also called a dust case. The dust collection case 30 has a nozzle portion 31 , a dust chamber 32 , a suction port 33 (suction portion), and a discharge port 34 .
ノズル部31は、中心軸が前後方向平行な筒形状を成し、集塵ケース30の前端部に位置する。ノズル部31は、吸込口33を形成する部分である。ノズル部31の内部全体が吸込口33である。吸込口33は、ファン73の発生する空気流の集塵室32内への入口となる。吸込口33は、排出口34よりも前側に位置する。
The nozzle portion 31 has a tubular shape with a center axis parallel to the front-rear direction, and is positioned at the front end portion of the dust collection case 30 . The nozzle part 31 is a part forming the suction port 33 . The entire inside of the nozzle portion 31 is the suction port 33 . The suction port 33 serves as an inlet for the airflow generated by the fan 73 into the dust collection chamber 32 . The suction port 33 is positioned forward of the discharge port 34 .
集塵室32は、中心軸が前後方向平行な筒形状を成し、ノズル部31の後方に連なる。集塵室32の外周面及び内周面は、前方に行くほど小径となる形状(テーパー状)となっている。集塵室32は、ノズル部31よりも拡径されている。集塵室32は、前方視でノズル部31よりも大きい内寸を有する。集塵室32は、ノズル部31と排出口34との間に位置する。集塵室32は、吸込口33から空気流とともに流入する塵埃を内部に集塵する(溜める)。
The dust collection chamber 32 has a cylindrical shape with a center axis parallel to the front-rear direction, and is connected to the rear of the nozzle portion 31 . The outer peripheral surface and the inner peripheral surface of the dust collection chamber 32 have a shape (tapered shape) in which the diameter decreases toward the front. The dust collection chamber 32 has a larger diameter than the nozzle portion 31 . The dust collection chamber 32 has an inner dimension larger than that of the nozzle portion 31 when viewed from the front. The dust collection chamber 32 is positioned between the nozzle portion 31 and the discharge port 34 . The dust collection chamber 32 collects (accumulates) dust that flows from the suction port 33 along with the air flow.
排出口34は、集塵室32の後端部に位置する。排出口34は、本体ハウジング10の吸気口14と接続する(連通する)。排出口34は、集塵室32内の塵埃を外部に排出する部分であり、またファン73の発生する空気流を集塵室32内から本体ハウジング10内に通す通路部でもある。
The outlet 34 is located at the rear end of the dust collection chamber 32 . The outlet 34 connects (communicates) with the inlet 14 of the body housing 10 . The discharge port 34 is a portion for discharging dust in the dust collection chamber 32 to the outside, and is also a passage portion for passing the air flow generated by the fan 73 from the dust collection chamber 32 to the body housing 10 .
集塵ケース30は、後端の上部と下部にそれぞれ延長部35を有する。延長部35は、集塵ケース30の筒形状の一部を後方に延長した部分である。延長部35は、ラッチ係合穴36を有する。ラッチ係合穴36は、ラッチ部材21の爪部23を引っ掛ける部分である。集塵ケース30を図3から図2の状態に遷移するように本体ハウジング10に対して後方にスライドさせると、ラッチ係合穴36にラッチ部材21の爪部23が引っ掛かり、集塵ケース30が本体ハウジング10に係止される。
The dust collection case 30 has extensions 35 at upper and lower rear ends. The extension part 35 is a rearward extension of a part of the cylindrical shape of the dust collection case 30 . Extension 35 has a latch engagement hole 36 . The latch engagement hole 36 is a portion for hooking the claw portion 23 of the latch member 21 . When the dust collection case 30 is slid rearward with respect to the body housing 10 so as to transition from the state shown in FIG. 3 to the state shown in FIG. It is locked to the body housing 10 .
図1及び図5(A),(B)に示すように、集塵ケース30は、後端の右部に覆い部37を有する。覆い部37は、引出部40の連結部46を覆う部分である。覆い部37の後端部は、フック部38となっている。フック部38は、引出部40の爪部49を引っ掛けて引出部40を集塵ケース30に係止する部分である。
As shown in FIGS. 1 and 5(A) and (B), the dust collection case 30 has a cover portion 37 on the right portion of the rear end. The cover portion 37 is a portion that covers the connection portion 46 of the drawer portion 40 . A rear end portion of the cover portion 37 serves as a hook portion 38 . The hook portion 38 is a portion for hooking the claw portion 49 of the drawer portion 40 to lock the drawer portion 40 to the dust collection case 30 .
作業機1は、引出部40を有する。引出部40は、集塵室32の内部に配置される。引出部40は、集塵ケース30に対し後方に相対移動することで集塵室32内の塵埃を排出口34から引き出す(掻き出す)部材である。引出部40は、フィルタ部60よりも前方側に延在する。また、引出部40の前端部は、集塵室32の前壁部内面(特に、吸込口33の周囲)に当接する。
The working machine 1 has a drawer section 40 . The drawer 40 is arranged inside the dust collection chamber 32 . The drawer 40 is a member that pulls out (scrapes) the dust in the dust collection chamber 32 from the discharge port 34 by moving backward relative to the dust collection case 30 . The drawer portion 40 extends forward from the filter portion 60 . Further, the front end portion of the drawer portion 40 abuts against the inner surface of the front wall portion of the dust collection chamber 32 (especially around the suction port 33).
引出部40は、例えば樹脂成形体からなるフレーム部分として、基部41、3本の柱部42、中間連結部43、前端連結部44を有する。
The lead-out portion 40 has a base portion 41, three pillar portions 42, an intermediate connecting portion 43, and a front end connecting portion 44 as a frame portion made of, for example, a resin molding.
基部41は、前後方向と垂直な板状の環状部である。基部41の外縁部は、集塵ケース30の内周面に沿う。基部41の前面は、図8に示すように集塵ケース30の内面の段差部39と係合する。基部41の背面は、図7に示すように本体ハウジング10の前端部と係合(当接)し、前方に向かって押し付けられる。すなわち、引出部40は、後端部が本体ハウジング10と当接し、集塵室32に向かって前方側に押し付けられる。
The base portion 41 is a plate-like annular portion perpendicular to the front-rear direction. The outer edge of the base 41 extends along the inner peripheral surface of the dust collection case 30 . The front surface of the base portion 41 engages with the step portion 39 on the inner surface of the dust collection case 30 as shown in FIG. The rear surface of the base portion 41 engages (abuts) the front end portion of the main body housing 10 as shown in FIG. 7 and is pressed forward. That is, the rear end portion of the drawer portion 40 contacts the body housing 10 and is pressed forward toward the dust collection chamber 32 .
3本の柱部42は、それぞれ基部41から前方に延びる。3本の柱部42は、前方視で略等角度間隔に設けられる。柱部42のうち1本は、集塵室32の中心軸線の真上に位置する。すなわち、集塵室32の中心軸線の真下を中心とする約120度の範囲には柱部42が存在しない。
The three pillars 42 extend forward from the base 41 respectively. The three pillars 42 are provided at approximately equal angular intervals when viewed from the front. One of the pillars 42 is positioned directly above the center axis of the dust collection chamber 32 . In other words, the pillar 42 does not exist within a range of about 120 degrees centered on the central axis of the dust collection chamber 32 .
中間連結部43は、3本の柱部42の長さ方向の中間部同士を集塵室32の中心軸線周りに略円弧状に連結する。集塵室32の径方向において、中間連結部43は、3本の柱部42の集塵室32の中心軸線寄りの部分同士(中心軸側の端部同士)を連結する。中間連結部43は、前方視で閉じておらず、集塵室32の中心軸線の真下を中心とする約120度の範囲には中間連結部43が存在しない。
The intermediate connecting portion 43 connects the lengthwise intermediate portions of the three pillars 42 to each other in a substantially arc shape around the central axis of the dust collection chamber 32 . In the radial direction of the dust collection chamber 32 , the intermediate connection portion 43 connects portions of the three pillars 42 near the center axis of the dust collection chamber 32 (ends on the center axis side). The intermediate connecting portion 43 is not closed when viewed from the front, and the intermediate connecting portion 43 does not exist within a range of approximately 120 degrees centered directly below the central axis of the dust collection chamber 32 .
前端連結部44は、3本の柱部42の長さ方向の前端部同士を集塵室32の中心軸線周りに略円状に連結する。前端連結部44は、中間連結部43より小径である。引出部40は、前端連結部44に接続する保持部45を有する。保持部45は、集塵室32の中心軸線の真上に位置する柱部42の前端部に位置する。保持部45は、中心軸線が左右方向と平行な筒形状を成す。保持部45は、規制部50の取付部52を保持する部分である。
The front end connecting portion 44 connects the front end portions of the three pillars 42 in the longitudinal direction to each other in a substantially circular shape around the central axis of the dust collection chamber 32 . The front end connecting portion 44 has a smaller diameter than the intermediate connecting portion 43 . The lead-out portion 40 has a holding portion 45 connected to the front end connecting portion 44 . The holding portion 45 is located at the front end portion of the column portion 42 located directly above the central axis of the dust collection chamber 32 . The holding portion 45 has a cylindrical shape with a center axis parallel to the left-right direction. The holding portion 45 is a portion that holds the mounting portion 52 of the restricting portion 50 .
図2~図4に示すように、前端連結部44は、保持部45の右下端部に接続される。これのため、右方向視で、前端連結部44の上に保持部45の右端部の開口が露出する。これにより、規制部50の着脱が容易となっている。
As shown in FIGS. 2 to 4, the front end connecting portion 44 is connected to the lower right end portion of the holding portion 45. As shown in FIG. Therefore, when viewed from the right, the right end opening of the holding portion 45 is exposed above the front end connecting portion 44 . This facilitates attachment and detachment of the restricting portion 50 .
引出部40は、規制部50を有する。規制部50は、ゴム等の弾性体からなる。規制部50は、吸込口33の後端部の後方に隣接して配置される。すなわち、引出部40は、前端部がノズル部31の後端部と接触する。
The lead-out portion 40 has a restriction portion 50 . The restricting portion 50 is made of an elastic body such as rubber. The restricting portion 50 is arranged adjacent to the rear of the rear end portion of the suction port 33 . That is, the front end portion of the lead-out portion 40 contacts the rear end portion of the nozzle portion 31 .
規制部50は、塵埃の逆流防止用のバルブである。規制部50は、吸込口33を介して集塵ケース30の外部から集塵ケース30の内部(集塵室32の内部)へ流れる空気流を許容し、吸込口33を介して集塵ケース30の内部(集塵室32の内部)から集塵ケース30の外部への塵埃の流出を規制する。
The regulation part 50 is a valve for preventing backflow of dust. The restricting portion 50 allows an air flow from the outside of the dust collection case 30 to the inside of the dust collection case 30 (inside the dust collection chamber 32 ) through the suction port 33 , and allows the air flow to flow into the dust collection case 30 through the suction port 33 . (inside the dust collection chamber 32 ) to the outside of the dust collection case 30 .
規制部50は、覆い部51及び取付部52を有する。覆い部51は、吸込口33を閉塞するようにノズル部31の後方側端部ないし集塵室32の前壁部内面に当接する。この当接力は、前述のように基部41の背面が本体ハウジング10によって前方に押し付けられることで付与される。取付部52は、保持部45の内部に保持される。規制部50は、取付部52を右方から保持部45に嵌め込んでいくことで保持部45に装着できる。
The restriction portion 50 has a cover portion 51 and an attachment portion 52 . The cover portion 51 contacts the rear end portion of the nozzle portion 31 or the inner surface of the front wall portion of the dust collection chamber 32 so as to block the suction port 33 . This contact force is applied by pressing the back surface of the base portion 41 forward by the body housing 10 as described above. The attachment portion 52 is held inside the holding portion 45 . The restricting portion 50 can be attached to the holding portion 45 by fitting the mounting portion 52 into the holding portion 45 from the right side.
覆い部51は、吸込口33を介して集塵ケース30の外部から集塵ケース30の内部(集塵室32の内部)へ流れる空気流によって、取付部52を支点として、図6(C)に示すように吸込口33から離間するように変形可能である。覆い部51は、前面が吸込口33の周囲と接触するため、前方には変形しない(変形不能である)。
The cover portion 51 is rotated by the airflow flowing from the outside of the dust collection case 30 to the inside of the dust collection case 30 (inside the dust collection chamber 32) through the suction port 33, with the mounting portion 52 as a fulcrum, as shown in FIG. can be deformed so as to be separated from the suction port 33 as shown in FIG. Since the front surface of the cover portion 51 contacts with the periphery of the suction port 33, the cover portion 51 does not deform forward (non-deformable).
図4に示すように、引出部40は、基部41の右部から後方に延出する連結部46を有する。連結部46は、上下方向と垂直な板状である。連結部46は、図3に示す本体ハウジング10の切欠き部16を通って本体ハウジング10の径方向外側に延びてから、後方に延びる。
As shown in FIG. 4 , the drawer portion 40 has a connecting portion 46 extending rearward from the right portion of the base portion 41 . The connecting portion 46 has a plate shape perpendicular to the vertical direction. The connecting portion 46 extends radially outward of the body housing 10 through the notch 16 of the body housing 10 shown in FIG. 3 and then extends rearward.
連結部46は、集塵ケース30の覆い部37に覆われる。連結部46が覆い部37と係合(嵌合)することで、集塵ケース30に対する引出部40の回転位置が定められる。連結部46が切欠き部16と係合(嵌合)することで、本体ハウジング10に対する集塵ケース30及び引出部40の回転位置が定められる。連結部46は、段差部47を有する。段差部47は、本体ハウジング10の段差部17と係合する。
The connecting portion 46 is covered with the cover portion 37 of the dust collection case 30 . By engaging (fitting) the connecting portion 46 with the cover portion 37 , the rotational position of the drawer portion 40 with respect to the dust collection case 30 is determined. By engaging (fitting) the connecting portion 46 with the notch portion 16 , the rotational positions of the dust collection case 30 and the drawer portion 40 with respect to the main body housing 10 are determined. The connecting portion 46 has a stepped portion 47 . The stepped portion 47 engages with the stepped portion 17 of the body housing 10 .
引出部40は、つまみ部48を有する。つまみ部48は、連結部46の後端に連なる。つまみ部48は、集塵ケース30から引出部40を後方に引き出す際に作業者が持つ部分である。つまみ部48は、連結部46によって基部41と連結される。つまみ部48は、左右方向と垂直な板状、あるいはモータ収容部11の外周面に沿う板状であり、モータ収容部11の外周面右前部に近接する。
The drawer portion 40 has a knob portion 48 . The knob portion 48 continues to the rear end of the connecting portion 46 . The grip portion 48 is a portion held by an operator when pulling out the drawer portion 40 from the dust collection case 30 to the rear. The knob portion 48 is connected to the base portion 41 by the connecting portion 46 . The knob portion 48 has a plate-like shape perpendicular to the left-right direction or a plate-like shape along the outer peripheral surface of the motor housing portion 11 and is close to the right front portion of the outer peripheral surface of the motor housing portion 11 .
つまみ部48には、右方に突出する爪部49が設けられる。爪部49は、集塵ケース30のフック部38を引っ掛ける部分である。爪部49にフック部38が引っ掛かることにより、引出部40が集塵ケース30に対して係止される。集塵ケース30及び引出部40を本体ハウジング10から分離した状態でつまみ部48を内側に向けて押すことで、爪部49とフック部38の係合を解除し、集塵ケース30から引出部40を後方に引き出せる。
The knob portion 48 is provided with a claw portion 49 protruding rightward. The claw portion 49 is a portion for hooking the hook portion 38 of the dust collection case 30 . The drawer portion 40 is locked to the dust collection case 30 by hooking the hook portion 38 on the claw portion 49 . By pressing the knob portion 48 inward with the dust collection case 30 and the drawer portion 40 separated from the main body housing 10, the engagement between the claw portion 49 and the hook portion 38 is released, and the dust collection case 30 is separated from the drawer portion. 40 can be pulled backwards.
引出部40は、除塵部としての除塵パッキン54を有する。除塵パッキン54は、基部41に取り付けられる。除塵パッキン54は、前方視でフィルタ部60の外形に沿った環状に形成される。除塵パッキン54は、リング部55及び除塵ブレード56を有する。
The drawer portion 40 has a dust removal packing 54 as a dust removal portion. Dust removal packing 54 is attached to base 41 . The dust removal packing 54 is formed in an annular shape along the contour of the filter portion 60 when viewed from the front. The dust removal packing 54 has a ring portion 55 and dust removal blades 56 .
リング部55は、基部41の内周部と嵌合する円状部である。除塵ブレード56は、リング部55から径方向内側に延びる。ここでは、8つの除塵ブレード56が前方視でフィルタ部60の外形に沿って等角度間隔で環状に配列される。除塵ブレード56は、本体ハウジング10から集塵ケース30及び引出部40が前方に取り出される(取り外される)際にフィルタ61の外面を前方に摺動することでフィルタ61の外面(外周)に堆積(付着)した塵埃を除去する。
The ring portion 55 is a circular portion that fits into the inner peripheral portion of the base portion 41 . The dust removing blade 56 extends radially inward from the ring portion 55 . Here, eight dust removing blades 56 are arranged in a ring at equal angular intervals along the outer shape of the filter portion 60 when viewed from the front. The dust removing blade 56 slides forward on the outer surface of the filter 61 when the dust collecting case 30 and the drawer portion 40 are taken out (removed) forward from the main body housing 10 , thereby depositing on the outer surface (periphery) of the filter 61 ( (adhesion) is removed.
作業機1は、フィルタ部60を有する。フィルタ部60は、吸込口33と排出口34との間に位置するように集塵室32の内部に配置され、吸込口33から排出口34へ流れる空気流に含まれる塵埃を捕集する。フィルタ部60は、本体ハウジング10に取り付けられる。
The work implement 1 has a filter section 60 . The filter unit 60 is arranged inside the dust collection chamber 32 so as to be positioned between the suction port 33 and the discharge port 34 and collects dust contained in the airflow flowing from the suction port 33 to the discharge port 34 . The filter part 60 is attached to the body housing 10 .
フィルタ部60は、フィルタ61を有する。フィルタ61は、後端部に開口を有する袋状である。フィルタ61は、空気流を通す一方で塵埃は通さずに捕集する。
The filter section 60 has a filter 61 . The filter 61 is bag-shaped with an opening at the rear end. Filter 61 traps dust while allowing airflow to pass through.
フィルタ部60は、フレーム部材62を有する。フレーム部材62は、例えば樹脂成形体である。フレーム部材62は、フィルタ61を前端部が閉塞されて後端部に開口が位置する筒形状に支持する。
The filter section 60 has a frame member 62 . The frame member 62 is, for example, a resin molding. The frame member 62 supports the filter 61 in a cylindrical shape with a closed front end and an opening at the rear end.
フレーム部材62は、基部63、柱部64、連結部65を含む。基部63は、中心軸が前後方向と平行な円筒状を成す。基部63には、ホルダ67を係止するための4つの爪部63aが前方視で等角度間隔で設けられる。柱部64は、基部63から前方に延びる。ここでは、8本の柱部64が前方視で等角度間隔で設けられる。連結部65は、8本の柱部64の前端部同士を環状に連結する。また、本実施の形態では、フレーム部材62は前方視で集塵ケース30と同心状に配置される。一方で、フレーム部材62を集塵ケース30の中心よりも上側にオフセットして配置すると、集塵ケース30内の下側に堆積した塵埃によってフィルタ61が埋まりにくくなり、フィルタ61の目詰まりが抑制される。
The frame member 62 includes a base portion 63 , a column portion 64 and a connecting portion 65 . The base 63 has a cylindrical shape with a central axis parallel to the front-rear direction. Four claw portions 63a for locking the holder 67 are provided on the base portion 63 at equal angular intervals when viewed from the front. The column portion 64 extends forward from the base portion 63 . Here, eight pillars 64 are provided at equal angular intervals when viewed from the front. The connecting portion 65 connects the front ends of the eight pillars 64 to each other in a ring shape. Further, in the present embodiment, the frame member 62 is arranged concentrically with the dust collection case 30 when viewed from the front. On the other hand, if the frame member 62 is offset above the center of the dust collection case 30, the filter 61 is less likely to be clogged with dust accumulated on the lower side of the dust collection case 30, and clogging of the filter 61 is suppressed. be done.
フィルタ部60は、ホルダ67を有する。ホルダ67は、例えば樹脂成形体である。ホルダ67は、中心軸が前後方向と平行な円筒状を成す。ホルダ67は、フレーム部材62の基部63との間にフィルタ61の後端部を保持するための部材である。フィルタ61を支持したフレーム部材62に対してホルダ67を前方から組み付けていくことで、基部63の外周面とホルダ67の内周面とでフィルタ61の後端部を保持(挟持)できる。
The filter section 60 has a holder 67 . The holder 67 is, for example, a resin molding. The holder 67 has a cylindrical shape whose central axis is parallel to the front-rear direction. The holder 67 is a member for holding the rear end portion of the filter 61 between itself and the base portion 63 of the frame member 62 . By assembling the holder 67 from the front to the frame member 62 supporting the filter 61 , the rear end portion of the filter 61 can be held (nipped) between the outer peripheral surface of the base portion 63 and the inner peripheral surface of the holder 67 .
ホルダ67は、フレーム部材62の爪部63aと係合する4つの切欠き部68を前方視で等角度間隔で有する。爪部63aが切欠き部68に引っ掛かることで、フレーム部材62に対してホルダ67が係止される。
The holder 67 has four cutouts 68 that engage with the claws 63a of the frame member 62 at equal angular intervals when viewed from the front. The holder 67 is locked to the frame member 62 by hooking the claw portion 63 a on the notch portion 68 .
フィルタ部60は、ホルダ67の後端部に取り付けられたリング状の弾性部材69を有する。図7に示すように、弾性部材69は、ホルダ67の後端部と本体ハウジング10の前面部との間を、吸気口14の周囲全周に渡って気密に塞ぐ。
The filter section 60 has a ring-shaped elastic member 69 attached to the rear end of the holder 67 . As shown in FIG. 7, the elastic member 69 airtightly closes the space between the rear end portion of the holder 67 and the front portion of the main body housing 10 over the entire periphery of the intake port 14 .
フィルタ部60は、本体ハウジング10の前端部に位置合わせして前方視で右回りに所定角度回転させることで、本体ハウジング10の前端部に取り付けられる。この状態で、空気流がフィルタ61を外部から内部へ通過するようにフィルタ61の開口が吸気口14と接続される(連通する)。
The filter unit 60 is attached to the front end portion of the main body housing 10 by aligning it with the front end portion of the main body housing 10 and rotating it clockwise by a predetermined angle when viewed from the front. In this state, the opening of the filter 61 is connected (communicated) with the intake port 14 so that the airflow passes through the filter 61 from the outside to the inside.
作業機1は、モータ収容部11の内部に、ファンモータユニット70を有する。ファンモータユニット70としては市販品を利用できる。ファンモータユニット70は、ケース71内にモータ72、ファン73、基板74を収容したユニットである。
The work machine 1 has a fan motor unit 70 inside the motor housing portion 11 . A commercially available product can be used as the fan motor unit 70 . A fan motor unit 70 is a unit in which a motor 72 , a fan 73 and a substrate 74 are accommodated in a case 71 .
モータ72は、例えばインナーロータ型のブラシレスモータであり、駆動軸72aを有する。ファン73は、モータ72の本体(モータ72のうち駆動軸72aを除く部分)の前方において駆動軸72aに直結され、モータ72と共に回転する。ファン73は、モータ72の駆動力によって回転して空気流を発生させる。ケース71は、空気流を取り込むための空気取入口71a(図7)を前面部に有する。基板74は、モータ72の本体の後部に前後方向と垂直な姿勢で保持される。基板74は、モータ72の駆動に必要なスイッチング素子等の各素子を搭載する。
The motor 72 is, for example, an inner rotor type brushless motor, and has a drive shaft 72a. The fan 73 is directly connected to the drive shaft 72a in front of the main body of the motor 72 (a portion of the motor 72 excluding the drive shaft 72a), and rotates together with the motor 72. As shown in FIG. The fan 73 is rotated by the driving force of the motor 72 to generate an airflow. The case 71 has an air intake port 71a (FIG. 7) for taking in an air flow in the front part. The board 74 is held in the rear part of the main body of the motor 72 in a posture perpendicular to the front-rear direction. The board 74 mounts elements such as switching elements necessary for driving the motor 72 .
ケース71の前部外面とモータ収容部11の前壁部内面との間には、リング状の弾性部材75が設けられる。弾性部材75は、ケース71の前部外面とモータ収容部11の前壁部内面との間を、吸気口14及び空気取入口71aの周囲全周に渡って気密に塞ぐ。
A ring-shaped elastic member 75 is provided between the outer front surface of the case 71 and the inner surface of the front wall portion of the motor housing portion 11 . The elastic member 75 airtightly closes the space between the front outer surface of the case 71 and the inner surface of the front wall portion of the motor accommodating portion 11 along the entire periphery of the intake port 14 and the air intake port 71a.
以下、作業機1の動作を説明する。
The operation of the working machine 1 will be described below.
強ボタン26又は標準/弱ボタン27が押されると、モータ72が起動する。モータ72と一体にファン73が回転し、空気流が生じる。この空気流は、吸込口33から集塵室32内に入り、フィルタ61を通過し、排出口34、吸気口14、空気取入口71aを通ってファン73に吸い込まれ、モータ72及び基板74を冷却後、ケース71外に出て排気口15から本体ハウジング10の外部に排気される。塵埃は、空気流と共に吸込口33から集塵室32内に入るが、フィルタ61を通過できず、フィルタ61に捕集されて集塵室32に溜まる。
When the strong button 26 or normal/weak button 27 is pressed, the motor 72 is activated. A fan 73 rotates together with the motor 72 to generate an air flow. This airflow enters the dust collection chamber 32 from the suction port 33, passes through the filter 61, passes through the discharge port 34, the air intake port 14, and the air intake port 71a, and is sucked into the fan 73. After cooling, the air is discharged out of the case 71 and out of the body housing 10 through the exhaust port 15 . Dust enters the dust collection chamber 32 from the suction port 33 together with the airflow, but cannot pass through the filter 61 and is collected by the filter 61 and accumulated in the dust collection chamber 32 .
集塵室32内に溜まった塵埃の排出(除去)は、以下のように行う。
Dust accumulated in the dust collection chamber 32 is discharged (removed) as follows.
まず、本体ハウジング10の上下のラッチ部材21の押圧部22を押してラッチ部材21による係止を解除しながら、本体ハウジング10に対して集塵ケース30を相対的に前方に移動させる。集塵ケース30のフック部38が引出部40の爪部49に引っ掛かっているため、引出部40も集塵ケース30と共に本体ハウジング10に対して相対的に前方に移動する。このとき、引出部40の除塵ブレード56がフィルタ61の外周面を前方に向けて摺動し、フィルタ61の外周面に堆積した塵埃を除去する。ここで除去した塵埃は集塵ケース30内に落下する。
First, the dust collection case 30 is moved forward relative to the main body housing 10 while pressing the pressing portions 22 of the upper and lower latch members 21 of the main body housing 10 to release the locking by the latch members 21 . Since the hook portion 38 of the dust collection case 30 is hooked on the claw portion 49 of the drawer portion 40 , the drawer portion 40 also moves forward relative to the main body housing 10 together with the dust collection case 30 . At this time, the dust removal blade 56 of the drawer 40 slides toward the outer peripheral surface of the filter 61 to remove dust accumulated on the outer peripheral surface of the filter 61 . The dust removed here falls into the dust collecting case 30 .
続いて、つまみ部48を内側に押してフック部38による係止を解除しながら、つまみ部48を持って引出部40を集塵ケース30に対して相対的に後方に移動させ、引出部40を集塵ケース30から排出口34を介して取り外す(取り出す)。このとき、引出部40、特に前端連結部44が、集塵室32内の塵埃を排出口34を介して引き出す(掻き出す)。集塵ケース30から引出部40を取り外す動作は、ゴミ箱やゴミ袋の上で、排出口34を重力方向に向けて行うとよい。
Subsequently, while pushing the knob portion 48 inward to release the engagement by the hook portion 38, the knob portion 48 is held and the drawer portion 40 is moved rearward relative to the dust collection case 30, and the drawer portion 40 is moved. It is removed (taken out) from the dust collection case 30 through the outlet 34 . At this time, the drawer portion 40 , especially the front end connecting portion 44 draws out (scrapes out) the dust in the dust collection chamber 32 through the discharge port 34 . The operation of removing the drawer 40 from the dust collection case 30 is preferably performed on a trash can or a garbage bag with the outlet 34 directed in the direction of gravity.
引出部40を集塵ケース30に取り付けるには、引出部40の連結部46と集塵ケース30の覆い部37とを互いに位置合わせして、引出部40を集塵ケース30内に向けて相対的に前方に移動させ、集塵ケース30のフック部38を引出部40の爪部49に引っ掛ければよい。
In order to attach the drawer portion 40 to the dust collection case 30, the connecting portion 46 of the drawer portion 40 and the cover portion 37 of the dust collection case 30 are aligned with each other, and the drawer portion 40 is directed toward the inside of the dust collection case 30. The dust collection case 30 can be moved forward in a straight line, and the hook portion 38 of the dust collection case 30 can be hooked on the claw portion 49 of the drawer portion 40 .
集塵ケース30を本体ハウジング10に取り付けるには、引出部40の連結部46と本体ハウジング10の切欠き部16とを互いに位置合わせして、集塵ケース30を本体ハウジング10の前端部に向けて相対的に後方に移動させ、集塵ケース30のラッチ係合穴36に本体ハウジング10側のラッチ部材21の爪部23を引っ掛ければよい。
To attach the dust collection case 30 to the main body housing 10 , the connecting portion 46 of the drawer portion 40 and the cutout portion 16 of the main body housing 10 are aligned with each other, and the dust collection case 30 is directed toward the front end portion of the main body housing 10 . , so that the claws 23 of the latch member 21 on the main body housing 10 side are hooked to the latch engagement holes 36 of the dust collection case 30 .
本実施の形態によれば、下記の効果を奏することができる。
According to this embodiment, the following effects can be obtained.
(1) 引出部40は、集塵ケース30から排出口34を介して取り外される際に、集塵室32内の塵埃を排出口34を介して引き出す(掻き出す)。このため、集塵室32内に塵埃が詰まって排出口34を下に向けただけでは集塵室32内から塵埃を排出できない場合でも、集塵ケース30から引出部40を取り外すことで集塵室32内から塵埃を簡易に除去可能で作業性が良い。特に、デザイン性の観点で集塵ケース30の径方向の寸法を抑えた場合、高い塵埃収容量を確保するためには集塵ケース30を前後方向に長くする必要があり、詰まりが発生しやすい。本実施の形態では、集塵ケース30が細長い形状の場合でも集塵室32内から塵埃を簡易に除去可能で作業性が良い。換言すれば、本実施の形態は、細長い形状の集塵ケース30とすることを可能とし、径方向サイズの小型化を達成可能とするものである。
(1) When the drawer 40 is removed from the dust collection case 30 through the outlet 34 , the dust inside the dust collection chamber 32 is drawn out (scraped out) through the outlet 34 . For this reason, even if the dust is clogged in the dust collection chamber 32 and the dust cannot be discharged from the dust collection chamber 32 only by directing the discharge port 34 downward, the dust collection can be performed by removing the drawer 40 from the dust collection case 30. Dust can be easily removed from the chamber 32, and workability is good. In particular, when the radial dimension of the dust collection case 30 is suppressed from the viewpoint of design, the dust collection case 30 needs to be elongated in the front-rear direction in order to secure a large dust storage capacity, and clogging is likely to occur. . In the present embodiment, even when the dust collection case 30 has an elongated shape, dust can be easily removed from the inside of the dust collection chamber 32, resulting in good workability. In other words, the present embodiment enables the dust collection case 30 to have an elongated shape, thereby achieving a reduction in size in the radial direction.
(2) 引出部40は、集塵室32内から吸込口33に向かう塵埃の流出を防止するバルブとして機能する規制部50を前端部に有する。また、引出部40は、フィルタ61の除塵用の除塵パッキン54を有する。すなわち、引出部40は、集塵室32内から塵埃を引き出すための専用部材ではない。このため、集塵室32内から塵埃を引き出すための専用部材を別途設ける場合と比較して、部品点数の増加や製品重量の増加、コストを抑制できる。
(2) The drawer part 40 has a regulation part 50 at its front end that functions as a valve that prevents dust from flowing out from the dust collection chamber 32 toward the suction port 33 . Further, the drawer portion 40 has a dust removal packing 54 for removing dust from the filter 61 . That is, the drawer portion 40 is not a dedicated member for drawing dust out of the dust collection chamber 32 . Therefore, compared to the case of separately providing a dedicated member for extracting dust from the dust collection chamber 32, it is possible to suppress an increase in the number of parts, an increase in product weight, and cost.
(3) 規制部50により吸込口33を塞ぐためには引出部40が集塵室32内の前端部まで延びている必要があるが、集塵室32内から塵埃を引き出す機能においても引出部40は集塵室32内の前端部まで延びていることが望ましい。すなわち、集塵室32内の前端部まで延びている必要がある規制部50の機能を引出部40に組み込んだことで、引出部40は、吸込口33の閉塞と集塵室32内から塵埃を引き出しの双方を好適に実現できる。
(3) In order to close the suction port 33 with the restriction part 50, the drawer part 40 needs to extend to the front end inside the dust collection chamber 32. preferably extends to the front end within dust collection chamber 32 . That is, by incorporating the function of the restricting portion 50, which must extend to the front end portion in the dust collection chamber 32, into the drawer portion 40, the drawer portion 40 closes the suction port 33 and prevents dust from inside the dust collection chamber 32. can be suitably realized.
(4) 引出部40が規制部50を有するため、規制部50を集塵ケース30にネジ止め等により固定する必要なく、組立性が良い。規制部50は、取付部52を右方から保持部45に嵌め込んでいくことで保持部45に簡易に装着できる。規制部50を集塵ケース30にネジ止め等により固定する工程があると組立性が悪く、特に集塵ケース30が細長い形状の場合は組立性が顕著に悪化するが、本実施の形態ではそうした問題を好適に解決できる。
(4) Since the drawn-out portion 40 has the restricting portion 50, it is not necessary to fix the restricting portion 50 to the dust collecting case 30 by screwing or the like, which facilitates assembly. The restricting portion 50 can be easily attached to the holding portion 45 by fitting the mounting portion 52 into the holding portion 45 from the right side. If there is a step of fixing the restricting portion 50 to the dust collection case 30 by screwing or the like, the assembling performance is poor, especially when the dust collection case 30 has an elongated shape. Problems can be solved well.
(5) 引出部40が除塵パッキン54を有し、引出部40を本体ハウジング10から集塵ケース30と共に取り外す際に除塵ブレード56がフィルタ61の外周面を摺動してフィルタ61の外周面に堆積した塵埃を除去する。このため、集塵ケース30内の塵埃を除去する作業の過程でフィルタ61の除塵が行われ、作業性が良い。
(5) The drawer portion 40 has a dust removal packing 54, and when the drawer portion 40 is removed from the main body housing 10 together with the dust collection case 30, the dust removal blade 56 slides on the outer peripheral surface of the filter 61 and contacts the outer peripheral surface of the filter 61. Remove accumulated dust. Therefore, the filter 61 is dust-removed in the process of removing the dust inside the dust-collecting case 30, and workability is good.
以上、実施の形態を例に本発明を説明したが、実施の形態の各構成要素や各処理プロセスには請求項に記載の範囲で種々の変形が可能であることは当業者に理解されるところである。以下、変形例について触れる。
Although the present invention has been described above with reference to the embodiments, it will be understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiments within the scope of the claims. By the way. Modifications will be discussed below.
引出部40は、集塵室32の内壁を除塵する構造(ブラシや弾性ブレード)を有してもよい。この除塵構造は、引出部40の前端部にあるとよい。この除塵構造は、規制部50と一体に成形されてもよい。例えば覆い部51のサイズを拡大して集塵室32の内壁に接触させれば、集塵室32の内壁な簡易的な除塵構造となる。
The drawer 40 may have a structure (brush or elastic blade) for removing dust from the inner wall of the dust collection chamber 32 . This dust removing structure is preferably located at the front end of the drawer portion 40 . This dust removing structure may be formed integrally with the restricting portion 50 . For example, if the size of the cover portion 51 is enlarged and brought into contact with the inner wall of the dust collection chamber 32, the inner wall of the dust collection chamber 32 becomes a simple dust removal structure.
本発明の作業機は、本体ハウジングに内蔵した電池の電力で動作するものであってもよく、外部の交流電源からの電力で動作するコード付きタイプであってもよい。
The work machine of the present invention may be one that operates on power from a battery incorporated in the body housing, or may be a corded type that operates on power from an external AC power source.
1…作業機、10…本体ハウジング、11…モータ収容部、12…ハンドル部、13…電池パック装着部、14…吸気口、15…排気口、16…切欠き部、17…段差部、19…電池パック、21…ラッチ部材、22…押圧部、23…爪部、24…バネ、25…スイッチパル、26…強ボタン、27…標準/弱ボタン、28…切ボタン、30…集塵ケース(ダストケース)、31…ノズル部、32…集塵室、33…吸込口(吸込部)、34…排出口、35…延長部、36…ラッチ係合穴、37…覆い部、38…フック部、39…段差部、40…引出部、41…基部、42…柱部、43…中間連結部、44…前端連結部、45…保持部、46…連結部、47…段差部、48…つまみ部、49…爪部、50…規制部、51…覆い部、52…取付部、54…除塵パッキン、55…リング部、56…除塵ブレード、60…フィルタ部、61…フィルタ、62…フレーム部材、63…基部、63a…爪部、64…柱部、65…連結部、67…ホルダ、68…切欠き部、69…弾性部材、70…ファンモータユニット、71…ケース、71a…空気取入口、72…モータ、72a…駆動軸、73…ファン、74…基板、75…弾性部材。
DESCRIPTION OF SYMBOLS 1... Working machine 10... Main body housing 11... Motor accommodating part 12... Handle part 13... Battery pack mounting part 14... Intake port 15... Exhaust port 16... Notch part 17... Stepped part 19 Battery pack 21 Latch member 22 Pressing portion 23 Claw portion 24 Spring 25 Switch Pal 26 Strong button 27 Standard/Weak button 28 Off button 30 Dust collection case (Dust case) 31 Nozzle part 32 Dust collection chamber 33 Suction port (suction part) 34 Discharge port 35 Extension part 36 Latch engagement hole 37 Cover part 38 Hook Part 39 Stepped portion 40 Drawer portion 41 Base portion 42 Column portion 43 Intermediate connecting portion 44 Front end connecting portion 45 Holding portion 46 Connecting portion 47 Stepped portion 48 Knob portion 49 Claw portion 50 Regulating portion 51 Cover portion 52 Mounting portion 54 Dust removal packing 55 Ring portion 56 Dust removal blade 60 Filter portion 61 Filter 62 Frame Member 63 Base portion 63a Claw portion 64 Column portion 65 Connecting portion 67 Holder 68 Notch portion 69 Elastic member 70 Fan motor unit 71 Case 71a Air intake Inlet 72 Motor 72a Drive shaft 73 Fan 74 Substrate 75 Elastic member.
Claims (11)
- モータと、
前記モータの駆動力により空気流を生じるファンと、
前記モータ及び前記ファンを収容するとともに、前記空気流の入口となる吸気口を有する本体ハウジングと、
前記吸気口と接続する排出口と、前記排出口よりも第1方向の一方側に配置されて前記空気流の入口となる吸込口とを有し、前記空気流とともに流入する塵埃を内部に集塵する集塵ケースと、
前記集塵ケース内部に配置され、前記集塵ケースに対し前記第1方向の他方側へ相対移動することで前記集塵ケース内の前記塵埃を引き出す引出部と、を有し、
前記引出部は、前記吸込口に隣接して配置され、前記吸込口を介して前記集塵ケース外部から前記集塵ケース内部へ流れる前記空気流を許容し、前記吸込口を介して前記集塵ケース内部から前記集塵ケース外部へ前記塵埃が流出することを規制する規制部を有する、作業機。 a motor;
a fan that generates an air flow by the driving force of the motor;
a body housing containing the motor and the fan and having an air inlet serving as an inlet for the air flow;
It has an exhaust port connected to the intake port, and an intake port disposed on one side of the exhaust port in the first direction and serving as an inlet for the air flow, and collects dust that flows in with the air flow. a dust collecting case,
a drawer portion disposed inside the dust collection case and moving relative to the dust collection case toward the other side in the first direction to pull out the dust in the dust collection case;
The drawing portion is arranged adjacent to the suction port, allows the airflow flowing from the outside of the dust collection case to the inside of the dust collection case through the suction port, and allows the air flow to flow into the dust collection case through the suction port. A working machine comprising a restricting portion that restricts the dust from flowing out from the inside of the case to the outside of the dust collecting case. - 前記排出口は、前記集塵ケースにおける前記第1方向の他方側端部に設けられ、
前記吸込口と前記排出口との間に位置するように前記集塵ケースの内部に配置され、前記吸込口から前記排出口へ流れる空気流に含まれる塵埃を捕集するフィルタ部を有する、請求項1に記載の作業機 The discharge port is provided at the other end of the dust collection case in the first direction,
A filter part arranged inside the dust collection case so as to be positioned between the suction port and the discharge port and collecting dust contained in an airflow flowing from the suction port to the discharge port. Item 1. Work machine according to item 1 - 前記フィルタ部は、開口を有する袋状のフィルタと、前記フィルタを前記第1方向の一方側端部が閉塞されて他方側端部に前記開口が位置する筒形状に支持するフレーム部材と、を有し、前記空気流が前記フィルタを外部から内部へ通過するように前記開口が前記吸気口と接続し、
前記引出部は、前記フィルタの外面を摺動することで前記フィルタ外周に堆積した塵埃を除去する除塵部を有する、請求項2に記載の作業機。 The filter section includes a bag-shaped filter having an opening, and a frame member that supports the filter in a cylindrical shape with one end in the first direction closed and the opening positioned at the other end. wherein said opening communicates with said inlet such that said airflow passes through said filter from the outside to the inside;
3. The working machine according to claim 2, wherein said drawer section has a dust removal section that removes dust deposited on an outer periphery of said filter by sliding on an outer surface of said filter. - 前記引出部は、前記集塵ケースに取り付けられ、
前記フィルタ部は、前記本体ハウジングに取り付けられ、
前記除塵部は、前記集塵ケースが前記本体ハウジングから取り外されるときに、前記フィルタの外面を摺動する、請求項3に記載の作業機 The drawer is attached to the dust collection case,
The filter part is attached to the main body housing,
4. The working machine according to claim 3, wherein said dust removing part slides on the outer surface of said filter when said dust collecting case is removed from said main body housing. - 前記除塵部は、前記第1方向視において、前記フィルタ部の外形に沿った環状に形成される、請求項4に記載の作業機。 5. The working machine according to claim 4, wherein the dust removal section is formed in an annular shape along the outer shape of the filter section when viewed in the first direction.
- 前記引出部は、前記排出口を介して前記集塵ケースから取り外されるときに、前記集塵ケース内の前記塵埃を前記排出口から引き出す、請求項4または5に記載の作業機。 The working machine according to claim 4 or 5, wherein the drawer pulls out the dust in the dust collection case from the discharge port when removed from the dust collection case through the discharge port.
- 前記引出部は、少なくとも一部が前記フィルタ部よりも前記第1方向の一方側に配置される、請求項2乃至6の何れか一項に記載の作業機。 The work machine according to any one of claims 2 to 6, wherein at least part of said drawer portion is arranged on one side of said filter portion in said first direction.
- 前記集塵ケースは、前記第1方向に延びる筒形状を有し、前記第1方向の一方側端部に前記吸込口を含むノズル部を有し、前記第1方向の他方側端部に前記排出口が配置され、前記ノズル部と前記排出口との間に前記第1方向視で前記ノズル部よりも大きい内寸の集塵室を有し、
前記引出部は、前記第1方向の一方側端部が、前記ノズル部における前記第1方向の他方側端部と接触する、請求項1乃至7の何れか一項に記載の作業機。 The dust collection case has a cylindrical shape extending in the first direction, has a nozzle portion including the suction port at one end in the first direction, and has the nozzle portion at the other end in the first direction. a dust collection chamber having an inner dimension larger than that of the nozzle when viewed in the first direction between the nozzle portion and the discharge port;
The working machine according to any one of claims 1 to 7, wherein one end of the drawer portion in the first direction contacts the other end of the nozzle portion in the first direction. - 前記規制部は、前記吸込口を閉塞するように前記ノズル部における前記第1方向の他方側端部に当接し、かつ、前記吸込口を介して前記集塵ケース外部から前記集塵ケース内部へ流れる前記空気流によって前記吸込口から離間するように変形可能である、請求項8に記載の作業機。 The restricting portion abuts on the other side end portion of the nozzle portion in the first direction so as to close the suction port, and extends from the outside of the dust collection case to the inside of the dust collection case through the suction port. The working machine according to claim 8, wherein the working machine is deformable so as to be separated from the suction port by the flowing air flow.
- 前記引出部は、前記第1方向の他方側端部が前記本体ハウジングと当接し、集塵ケースに向かって前記第1方向の一方側に押し付けられている、請求項1乃至9の何れか一項に記載の作業機。 10. The lead-out portion according to any one of claims 1 to 9, wherein the other end portion in the first direction abuts the body housing and is pressed toward the dust collection case toward the one side in the first direction. Working machine described in paragraph.
- 駆動軸を有するモータと、
前記駆動軸に取り付けられ、前記モータの駆動力により空気流を生じるファンと、
前記モータ及び前記ファンを収容するとともに、前記空気流の入口となる吸気口を有する本体ハウジングと、
前記駆動軸の軸線方向に延びる筒形状を有し、前記軸線方向の一端に配置されて前記空気流の入口となる吸込口と、前記軸線方向の他端に配置されて前記吸気口と接続する排出口とを有し、前記空気流とともに流入する塵埃を内部に集塵する集塵ケースと、
前記吸込口と前記排出口との間に位置するように前記集塵ケースの内部に配置され、前記吸込口から前記排出口へ流れる空気流に含まれる塵埃を捕集するフィルタ部と、
少なくとも一部が前記フィルタ部よりも前記軸線方向の一方側に位置するように前記集塵ケース内部に配置され、前記集塵ケースに対し前記軸線方向の他方側へ相対移動することで前記集塵ケース内の前記塵埃を前記排出口から引き出す引出部と、を有する、作業機。 a motor having a drive shaft;
a fan attached to the drive shaft and generating an air flow by the driving force of the motor;
a body housing containing the motor and the fan and having an air inlet serving as an inlet for the air flow;
It has a cylindrical shape extending in the axial direction of the drive shaft, and is arranged at one end in the axial direction and connected to the intake port serving as an inlet for the air flow, and arranged at the other end in the axial direction and connected to the intake port. a dust collection case having an outlet for collecting dust that flows in with the air flow;
a filter unit disposed inside the dust collection case so as to be positioned between the suction port and the discharge port, and configured to collect dust contained in an airflow flowing from the suction port to the discharge port;
At least a portion of the filter portion is disposed inside the dust collection case so as to be located on one side in the axial direction relative to the filter portion, and moves relative to the dust collection case toward the other side in the axial direction to move the dust collection case. and a drawer for drawing out the dust in the case from the discharge port.
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CN112790664A (en) * | 2021-02-04 | 2021-05-14 | 安克创新科技股份有限公司 | Dust suction device |
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JP2003310501A (en) * | 2002-04-23 | 2003-11-05 | Hitachi Home & Life Solutions Inc | Vacuum cleaner |
JP2016067664A (en) * | 2014-09-30 | 2016-05-09 | 日立工機株式会社 | Portable cleaner |
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