JP2014068673A - Handheld cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handheld cleaner which prevents a cloud of dust in the surroundings from raising and can efficiently collect sand and dust.SOLUTION: In a housing 2, a suction port 12c and a plurality of exhaust ports 212a are formed. The housing 2 houses a motor 18 and a fan 19. The fan 19 is rotated to suck air through the suction port 12c and exhausts it through the plurality of exhaust ports 212a. The air exhausted through the plurality of exhaust ports 212a is exhausted in the direction of going away from a surface to be cleaned.

Description

  The present invention relates to a hand-held cleaner, and more particularly to a hand-held cleaner that can suck air from a dust collection port and blow out air from an air blowing port.

  As a hand-held cleaner driven by a secondary battery, a structure as shown in Patent Document 1 has been known.

JP-A-62-137026 Japanese Patent Publication No. 07-20464

  In the conventional hand-held cleaner, since the exhaust port is formed on the side surface of the housing, there has been a problem that dust from the exhaust port hits the surrounding wall to wind up dust (for example, Patent Document 1). Furthermore, in the conventional hand-held cleaner, since the exhaust port is formed on the bottom surface of the housing, there is a problem that dust is wound up by exhaust from the exhaust port hitting the floor surface (for example, Patent Document 2). In addition, it may be difficult to collect the sand that has entered the gaps in the window frame, or it may be difficult to collect the dust in the corners of the room or the groove of the bran.

  Accordingly, an object of the present invention is to provide a hand-held cleaner that can efficiently collect sand and dust by preventing the surrounding dust from being rolled up.

  In the present invention, a housing in which an air discharge port, an air suction port, an air passage connecting the air discharge port and the air suction port are formed, a motor housed in the housing, and the air passage And a fan that is rotationally driven by the motor, and a dust collection filter that is provided in the air passage and between the fan and the air suction port. A hand-held cleaner that cleans the surface to be cleaned by sucking into the air passage from the air suction port and discharging from the air discharge port, and the exhaust from the air discharge port is away from the surface to be cleaned The hand-held cleaner is characterized by being discharged.

  With such a configuration, air sucked from the air suction port is discharged away from the air discharge port in a direction away from the surface to be cleaned, thus preventing surrounding dust from being rolled up by air exhausted when using a handheld cleaner. it can. Thereby, the surrounding dust can be efficiently collected by the hand-held cleaner.

  The housing is formed with an air outlet that can blow out at least a part of the air that has flowed into the air passage from the air suction opening to the outside of the air passage. It is preferable to further include a switching unit that switches the discharge of the air that has flowed into the air between the air outlet and the air outlet.

  According to such a configuration, the exhaust from the air outlet can be discharged from the air outlet by switching the switching unit, so that the surrounding dust is wound up by the air exhausted when using the handheld cleaner. Further, it can be prevented. Thereby, the surrounding dust can be efficiently collected by the hand-held cleaner.

  Moreover, it is preferable that the exhaust from the air discharge port is discharged toward the direction away from the surface to be cleaned by being guided by the switching unit.

  According to such a configuration, since the switching unit guides the air discharged from the air discharge port, there is no need to provide a separate member for guiding the exhaust from the air discharge port, and the number of parts can be reduced. .

  Moreover, it is preferable that the said switching part is comprised with respect to the said housing so that rotation is possible.

  The switching unit includes a first position that guides air that has flowed into the air passage to the air discharge port, and a second position that guides the air that has flowed into the air passage to the air outlet. The switching unit is configured to guide the air in a direction away from the surface to be cleaned when the switch is in the first position, and the air when the switch is in the first position. It is preferable to include a selection unit that blocks communication between the suction port and the air blowing port and causes the air suction port and the air blowing port to communicate when in the second position.

  According to such a configuration, since the switching unit includes the guide unit that guides the exhaust air and the selection unit that switches the air flow path, the exhaust can be discharged between the air outlet and the air outlet with a simple configuration. Can be switched between.

  Moreover, it is preferable that the air suction port and the air blowing port are disposed adjacent to each other.

  According to such a configuration, the air suction port and the air blowing port are disposed adjacent to each other. Therefore, when it is desired to collect dust exclusively, air is not blown from the air blowing port, so that the air can be collected very effectively. Dust can be done. Further, since the air blown out from the air blowing port is sucked into the air suction port, dust around the air blowing port can be positively collected.

  Further, it is preferable that the housing has a handle portion that is gripped by an operator, and the air discharge port is formed on a side opposite to the side where the handle portion is provided with respect to the motor.

  According to such a configuration, it is possible to prevent the exhaust air from being directly blown out by an operator who holds the hand-held cleaner.

  Preferably, the fan is a centrifugal fan, and the air passage guides air discharged from the centrifugal fan to the air discharge port.

  According to such a configuration, the air sucked from the air sucking direction can be discharged outward in the radial direction of the motor. Thus, air can be discharged with a simple configuration without bending the air passage.

  As described above, according to the present invention, it is possible to provide a hand-held cleaner that can efficiently collect sand and dust by preventing the surrounding dust from being rolled up.

The side view which shows the handheld cleaner by the 1st Embodiment of this invention. The front view which shows the handheld cleaner by the 1st Embodiment of this invention. The top view which shows the handheld cleaner by the 1st Embodiment of this invention. Sectional drawing which shows the handheld cleaner by the 1st Embodiment of this invention. It is a figure which shows a mode that only suction | inhaling air and not blowing out with the handheld cleaner by the 1st Embodiment of this invention, (a) is a principal part bottom view, (b) is air flowing. The conceptual diagram which shows a mode. It is a figure which shows a mode that air is suck | inhaling and blowing out with the handheld cleaner by the 1st Embodiment of this invention, (a) is a principal part bottom view, (b) is a mode that air is flowing. FIG. The side view which shows the handheld cleaner by the 2nd Embodiment of this invention. Sectional drawing which shows the handheld cleaner by the 2nd Embodiment of this invention. It is a figure which shows the air inflow port of the handheld cleaner by the 2nd Embodiment of this invention, (a) is a conceptual diagram which shows a mode that an inflow port is open, (b) is a mode that an inflow port is closed FIG. The conceptual diagram which shows the opening-and-closing lid | cover of the handheld cleaner by the 2nd Embodiment of this invention. Sectional drawing which shows the handheld cleaner by the 3rd Embodiment of this invention. The elements on larger scale of the exhaust port of the handheld cleaner by the 3rd Embodiment of this invention. The cross-sectional perspective view seen from the front right direction when the switching part of the handheld cleaner by the 3rd Embodiment of this invention exists in a 1st position. The cross-sectional perspective view seen from the back right direction when the switching part of the handheld cleaner by the 3rd Embodiment of this invention exists in a 1st position. Sectional drawing when the switching part of the handheld cleaner by the 3rd Embodiment of this invention exists in a 2nd position. The cross-sectional perspective view seen from the front right direction when the switching part of the handheld cleaner by the 3rd Embodiment of this invention exists in a 2nd position. The cross-sectional perspective view seen from the back right direction when the switching part of the handheld cleaner by the 3rd Embodiment of this invention exists in a 2nd position.

  A handheld cleaner according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the handheld cleaner 1 includes a housing 10, a motor 18, and a fan 19. In the following description, the left side in FIG. 1A is defined as the rear side of the hand-held cleaner 1, the right side is defined as the front side of the hand-held cleaner 1, and the upper side in FIG. The description will be made by defining the lower side of the hand-held cleaner 1. Further, the lower side in FIG. 1C is defined as the right side of the hand-held cleaner 1, and the upper side is defined as the left side of the hand-held cleaner 1.

  The housing 10 includes a main body side housing 11 and a cover side housing 12, and the cover side housing 12 can be attached to and detached from the main body side housing 11. More specifically, as shown in FIG. 2, a substantially U-shaped locking portion 11 </ b> A is provided below the front end portion of the main body side housing 11, and the rear end portion of the cover side housing 12. A convex portion 12 </ b> A that can be engaged with the locking portion 11 </ b> A of the main body side housing 11 is provided at the lower portion of the main body side housing 11. A hook 11 </ b> B is provided at the upper portion of the front end portion of the main body side housing 11, and a latch portion 12 </ b> B is provided at the upper portion of the rear end portion of the cover side housing 12.

  The latch portion 12B has a latch engaging portion 12C extending horizontally and a fulcrum portion 12D. The latch engaging portion 12C is configured to operate like a seesaw around the fulcrum portion 12D, and the front portion 12F of the latch engaging portion 12C is always urged upward by a spring 12E. When the rear portion 12G of the latch engaging portion 12C is engaged with the hook 11B as shown in FIG. 2 and the convex portion 12A is engaged with the locking portion 11A, the main body side housing 11 and the cover side housing 12 are engaged. Is fixed. When the user of the handheld cleaner 1 pushes down the front portion 12F with a finger, the rear portion 12G of the latch engaging portion 12C is raised, and the engagement between the rear portion 12G and the hook 11B is released. The engagement between the rear portion 12G and the hook 11B is released, and the engagement between the locking portion 11A and the convex portion 12A is released, whereby the cover side housing 12 is removed from the main body side housing 11. Further, a cover-side handle portion 12H that allows the user of the handheld cleaner 1 to grip the cover-side housing 12 is provided in front of the cover-side housing 12.

  A handle portion 11 </ b> C is provided on the upper portion of the main body side housing 11. The handle portion 11 </ b> C has a substantially U shape, and the opening portion of the “U” shape is closed by the main body side housing 11, and a space 11 a is defined by the handle portion 11 </ b> C and the main body side housing 11. Has been. The handle portion 11C and the main body side housing 11 are integrally formed of plastic. A trigger 13 that can be operated by the user is provided at the front end of the handle portion 11C. In addition, a battery pack 14 in which lithium ion battery cells are accommodated is provided in a lower portion of the rear end portion of the main body side housing 11 so as to be detachable from the main body side housing 11.

  Further, a blowout amount adjustment unit 15 (FIG. 2) is provided at the lower portion of the front end portion of the main body side housing 11. The blowout amount adjusting portion 15 has a substantially cylindrical shape with an upper end opened and a lower end closed, and is supported by the main body side housing 11 so as to be rotatable about its axis. An I-shaped knob 15A (FIG. 3 or the like) is provided on the lower surface of the blowout amount adjusting unit 15, and the knob 15A is exposed to the outside. As shown in FIGS. 3 and 4, a notch 15 a is formed in the peripheral wall of the blowout amount adjusting unit 15. The notches 15a are formed at positions corresponding to both end positions of the I-shaped knob 15A, respectively, and are formed over a range of approximately 90 ° in the circumferential direction of the blowout amount adjusting unit 15, respectively.

  A portion below the front end portion of the main body side housing 11 and surrounding the peripheral wall of the blowing amount adjusting portion 15, that is, a portion that can be opposed to the peripheral wall, includes the inside of the main body side housing 11 and the outside of the main body side housing 11. A slit-like exhaust port 12a (FIG. 1 (a)) that communicates and a blowing side port portion 12b (FIG. 3 (a) and the like) that communicates with an air blowing pipe portion 16 described later are formed. The exhaust ports 12 a are formed on both sides in the left and right direction of the portion surrounding the peripheral wall of the blowing amount adjusting unit 15 at the lower part of the front end portion of the main body side housing 11, and centering on the axis of the blowing amount adjusting unit 15. Each of them is formed over a range of about 90 ° in the circumferential direction of the blowout amount adjusting unit 15. Further, the blowout side opening 12 b is formed in a lower part of the front end portion of the main body side housing 11 and in a front part of a portion surrounding the peripheral wall of the blowout amount adjusting unit 15. It is formed over a range of approximately 90 ° in the direction corresponding to the circumferential direction of the blowout amount adjusting unit 15 with the center as the center. The exhaust port 12a corresponds to an air discharge port.

  A suction port 12 c that opens forward is formed at the front end of the cover-side housing 12. The suction port 12 c forms a through hole that communicates the inside and the outside of the cover-side housing 12. An air blowing pipe portion 16 is provided at the lower portion of the cover-side housing 12. The air blowing pipe portion 16 is formed of a member different from the cover-side housing 12 and is fixedly attached to the cover-side housing 12 with screws as shown in FIGS. 3 and 4. The air blowing pipe portion 16 constitutes a part of the housing 10. At one end of the air blowing pipe portion 16, a blowing port 16a is formed adjacent to the suction port 12c and opened forward, and the other end has the cover side housing 12 fixed to the main body side housing 11. When it is, it communicates with the blowing side opening 12b. The air blowing tube portion 16 is formed with a passage 16b whose front end communicates with the blowing port 16a and whose rear end communicates with the blowing side port portion 12b. The air outlet 16a corresponds to an air outlet. The suction port 12 c communicates with the space around the fan 19 through a dust collection filter 17 described later. The suction port 12c corresponds to the air suction port of the present invention.

  As shown in FIG. 2, a rubber lid 12I having a disk shape substantially the same shape as the suction port 12c is provided in the cover-side housing 12 and in the vicinity of the suction port 12c. The upper end of the periphery of the lid portion 12I is supported by the cover-side housing 12, and can be rotated around the supported portion. The lid 12I is biased by a spring (not shown) so that the suction port 12c is closed as shown in FIG. 2 when no force is applied to the lid 12I from the outside. When the user of the handheld cleaner 1 operates the trigger 13 and the fan 19 starts to rotate, the inside of the cover-side housing 12 becomes negative pressure, and the lid portion 12I rotates to open the suction port 12c. ing.

  As shown in FIG. 2, a bag-shaped dust collection filter 17 made of a nonwoven fabric and having a circular opening is provided inside the rear end portion of the cover-side housing 12. The opening of the dust collection filter 17 is provided with a substantially cylindrical attached portion 17A that can be attached to and detached from a dust collection filter attachment portion 21 to be described later, and is coaxially fixed to the opening of the dust collection filter 17. Yes. When the attached portion 17A is attached to a dust collection filter attaching portion 21 to be described later, the axial direction of the attached portion 17A substantially coincides with the direction from the suction port 12c toward the fan 19 to be described later.

  The motor 18 is provided in the main body side housing 11 and supported by the main body side housing 11 at a position slightly ahead of the center of the main body side housing 11 in the front-rear direction, and is electrically connected to the battery pack 14 and the trigger 13. It is connected to the. The motor 18 has an output shaft 18A, and the motor 18 is arranged so that the output shaft 18A is oriented in a direction connecting substantially lower left and substantially upper right. For this reason, it is not necessary to have a configuration in which a part of the motor 18 protrudes into the space 11a defined by the handle portion 11C and the main body side housing 11. In addition, it is conceivable to arrange the motor 18 at a forward position so as not to protrude in this way, but if this is done, the total length of the hand-held cleaner 1 in the front-rear direction becomes longer. However, in the present embodiment, since the motor 18 is arranged as described above, the space in the main body side housing 11 located below the handle portion 11C is effectively utilized, and the front-rear direction of the handheld cleaner 1 is determined. It is possible to prevent the total length in the case from becoming longer.

  The fan 19 is configured by a centrifugal fan and is disposed inside the front end portion of the main body side housing 11. The fan 19 is fixed to the output shaft 18A of the motor 18, and the fan 19 can rotate integrally with the output shaft 18A.

  A dust collection filter attaching portion 21 is provided in front of the fan 19. The dust collection filter mounting portion 21 has a substantially cylindrical shape, protrudes forward from the front end of the main body side housing 11, and is located in the cover side housing 12 as shown in FIG. 2. Attached portion 17A is detachably attached to the opening at the front end in the axial direction of dust collection filter attachment portion 21 in a coaxial relationship with dust collection filter attachment portion 21, and the other end portion is disposed opposite fan 19. Yes.

  Next, the operation of the handheld cleaner 1 will be described. When collecting dust exclusively, the user of the hand-held cleaner 1 first picks up the knob 15A of the blowing amount adjusting unit 15 to rotate the blowing amount adjusting unit 15 to rotate to the first position (suction mode), that is, FIG. The state shown in (a) is assumed. Next, when the user of the handheld cleaner 1 operates the trigger 13, the motor 18 is rotationally driven to rotate the fan 19. Thereby, air flows in from the suction port 12 c, the air passes through the dust collection filter 17, flows into the fan 19, and flows into the blowing amount adjusting unit 15. Then, as shown by an arrow in FIG. 3B, the air passes through the notch 15a of the blowing amount adjusting unit 15, passes through the exhaust port 12a, and is discharged to the outside of the main body side housing 11. In the suction mode, all of the air that flows into the cover-side housing 12 from the suction port 12c is discharged from the exhaust port 12a.

  When performing a blower that blows out air from the outlet 16a, the user of the hand-held cleaner 1 first picks up the knob 15A of the outlet adjustment unit 15 to rotate the outlet adjustment unit 15 to the second position (blower mode). ), That is, the state shown in FIG. Next, when the user of the handheld cleaner 1 operates the trigger 13, the motor 18 is rotationally driven and the fan 19 is rotated. Thereby, air flows in from the suction port 12 c, the air passes through the dust collection filter 17, flows into the fan 19, and flows into the blowing amount adjusting unit 15. Then, as shown by the arrow in FIG. 4B, the air passes through the notch 15a of the blowing amount adjusting unit 15, flows through the passage 16b in the air blowing tube unit 16, and is blown out from the blowing port 16a. In the blower mode, all of the air that flows into the cover-side main body from the suction port 12c is blown out from the blowout port 16a.

  When it is desired to weaken the amount of air blown from the blowout port 16a, the user of the hand-held cleaner 1 first picks up the knob 15A of the blowout amount adjustment unit 15 so that the blowout amount adjustment unit 15 is shown in FIG. The state shown in FIG. 3 is rotated clockwise by about 45 ° to be an intermediate state between the state shown in FIG. 3A and the state shown in FIG. As a result, the internal space of the blowout amount adjusting unit 15 communicates with the space inside the air blowout pipe unit 16 and the external space of the main body side housing 11 through the notch 15 a of the blowout amount adjusting unit 15. Next, when the user of the handheld cleaner 1 operates the trigger 13, the motor 18 is rotationally driven and the fan 19 is rotated. Thereby, air flows in from the suction port 12 c, the air passes through the dust collection filter 17, flows into the fan 19, and flows into the blowing amount adjusting unit 15. A part of the air passes through the notch 15a of the blowing amount adjusting unit 15, flows through the passage 16b, and is blown out from the blowing port 16a. The remaining portion of the air is discharged from the inside of the blowout amount adjusting unit 15 through the notch 15a of the blowout amount adjusting unit 15, through the exhaust port 12a, and outside the main body side housing 11. In this case, since a part of the air that has flowed into the cover-side main body from the suction port 12c is blown out from the blowout port 16a, the amount of the blown out air is weakened.

  In the above three cases, the flow path of the air until the air that has flowed in from the suction port 12c is discharged from the blowout port 16a or the exhaust port 12a corresponds to an air passage.

  Since the blowout amount adjustment unit 15 is provided and the exhaust port 12a is formed in the housing 10, the amount of air blown from the blowout port 16a can be easily adjusted by rotating the blowout amount adjustment unit 15. can do. In addition, when it is desired to collect dust exclusively, the suction mode can be set so that air is not blown out from the air outlet 16a. As a result, the air is blown out by the air from the air outlet 16a. Can be prevented.

  Moreover, since the suction inlet 12c and the blower outlet 16a are formed in the front-end part of the housing 10, it can collect dust effectively by setting to suction mode, when it wants to collect dust exclusively.

  Further, since the suction port 12c and the blowout port 16a are disposed adjacent to each other, dust collection can be performed extremely effectively by setting the suction mode when dust collection is to be performed exclusively.

  Next, a handheld cleaner according to a second embodiment of the present invention will be described with reference to FIGS. In the hand-held cleaner 101 according to the second embodiment, an air inlet 112d is formed in the cover-side housing 112, and an open / close lid 123 is provided to prevent the inflow of air from the suction port 12c. This is different from the hand-held cleaner 1 according to the first embodiment. Since the configuration other than this is the same as that of the hand-held cleaner 1 according to the first embodiment, the same members are indicated by the same reference numerals and the description thereof is omitted.

  The air inlet 112d is formed at a rear end portion of the cover-side housing 112 and at a symmetrical position in the left-right direction of the cover-side housing 112. The air inlet 112d is configured by forming a through hole including a plurality of slits in a rectangular area, and the air inlet 112d is located inside the cover-side housing 12 and opposed to the air inlet 112d. An inlet opening / closing slit part 122 (FIG. 7) having a rectangular shape substantially the same as 112d and having a plurality of slit-like through holes is provided.

  Both ends in the width direction of the inflow opening / closing slit portion 122 are supported by a pair of rail-shaped guide portions (not shown) provided inside the cover-side housing 12, and are moved in the longitudinal direction by the guide portions. Is possible. By the movement, the positions of the slits of the air inlet 112d and the slits of the inlet opening / closing slit part 122 coincide with each other, and a communication state as shown in FIG. Further, since the positions of the slit of the air inlet 112d and the slit of the inlet opening / closing slit part 122 are shifted, a communication cut-off state as shown in FIG.

  An air introduction pipe (not shown) is provided in a portion of the cover-side housing 112 facing the air inlet 112d. One end portion of the air introduction pipe portion covers the entire air inlet 112 d inside the cover-side housing 112, and the other end portion is connected to the dust collection filter attachment portion 21. Thereby, the space in the air introduction tube portion communicates with the internal space of the dust collection filter attachment portion 21.

  The open / close lid 123 is provided at the opening of the front end portion of the attached portion 17 </ b> A of the dust collection filter 17. The opening / closing lid 123 has a disk shape, and is arranged so as to be able to close the opening at the front end of the attached portion 17A. As shown in FIG. 8, a rotating rod 123A extending in parallel with the diameter is fixed to the periphery of the opening / closing lid 123, and is extended to the extending end of the rotating rod 123A. The lever 123B is fixed. By turning the lever 123B, the opening / closing lid 123 rotates around the rotation rod 123A as a center of rotation, and the opening at the front end of the attached portion 17A can be closed or opened.

  Next, the operation of the handheld cleaner 101 will be described. When only the blower that blows out air from the outlet 16a and does not collect dust at all, the user of the hand-held cleaner 101 first picks up the knob 15A of the outlet amount adjusting unit 15 and rotates the outlet amount adjusting unit 15; The state shown in FIG. Further, the inlet opening / closing slit 122 is moved to the state shown in FIG. Further, the opening at the front end of the attached portion 17A is closed by the opening / closing lid 123. As a result, the handheld cleaner 101 enters the blower mode.

  Next, when the user of the handheld cleaner 101 operates the trigger 13, the motor 18 is rotationally driven and the fan 19 rotates. Thereby, air flows in from the air inlet 112d, the air flows into the fan 19, and flows into the blowout amount adjusting unit 15. Then, the air passes through the notch 15a of the blowing amount adjusting unit 15, flows in the air blowing pipe unit 16, and is blown out from the blowing port 16a. In order to adjust the amount of inflow of air, the inlet opening / closing slit 122 is moved to be in an intermediate state between FIGS. 7A and 7B, and the slit of the air inlet 112d is appropriately opened. State. In the above-described case, the flow path through which air flows from the air inlet 112d until it is discharged from the outlet 16a corresponds to an air passage.

  An opening / closing lid 123 is provided, an air inlet 112d is formed in the housing 10, and an inlet opening / closing slit 122 is provided at a position facing the air inlet 112d. When a blower that blows air out is desired, air can be blown out from the air outlet 16a without sucking air from the air inlet 12c. For this reason, a blower work can be performed efficiently.

  Next, a hand-held cleaner 201 according to a third embodiment of the present invention will be described with reference to FIGS. The same configurations as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. 11 to 15, only the housing 10 is shown, and other members are not shown.

  The handheld cleaner 201 is a hand cleaner that sucks dust on the surface P to be cleaned. In the hand-held cleaner 201 according to the third embodiment, the point that the switching unit 215 is provided instead of the above-described blowing amount adjustment unit 15 and the structure of the cover-side housing 12 and the dust collection filter 17 are the same as those described above. Different from form.

  The housing 10 includes a main body side housing 11 and a cover side housing 212. A motor housing space 11b is formed in the main body side housing 11, and a motor 18 is housed therein. A dust collection filter 217 is provided in the cover side housing 212. The dust collection filter 217 includes a metal mesh prefilter 217A that forms an outer shell, a filter medium 217B made of a nonwoven fabric positioned inside the prefilter 217A, and a filter medium 217B that is positioned inside the filter medium 217B and prevents the filter medium 217B from being crushed inside. The reinforcing portion 217 </ b> C and a fixing portion 217 </ b> D that fixes the pre-filter 217 </ b> A and the filter medium 217 </ b> B to the cover-side housing 212 are configured. The pre-filter 217A and the filter medium 217B are fixed to the main body side housing 11 by being sandwiched between the rib 211A protruding from the main body side housing 11 and the fixing portion 217D. By removing the fixing portion 217D from the rib 111A, the prefilter 217A and the filter medium 217B can be exchanged. The reinforcing portion 217 </ b> C is configured to be detachable from the main body side housing 11.

  As shown in FIG. 10, a plurality of exhaust ports 212a are formed on the lower surface of the main body side housing 11, more specifically, on the opposite side of the motor 18 from the side where the handle portion 11C is provided. The plurality of exhaust ports 212 a are located outward in the radial direction of the fan 19. The plurality of exhaust ports 212 a are formed across the entire width of the lower surface of the main body side housing 11 in the left-right direction. Between each exhaust port 212a, a plurality of reinforcing ribs 211B extending in the left-right direction and reinforcing ribs 211C extending in the front-rear direction are provided. With such a configuration, since the opening area of the exhaust port 212a can be increased while maintaining the strength as the housing 10, the exhaust resistance can be reduced. Among the plurality of exhaust ports 212a, the exhaust port 212a positioned at the forefront (hereinafter referred to as the front exhaust port 212a) has a larger opening area than the other exhaust ports 212a. Thereby, the below-mentioned switching part 215 can be supported in the foremost exhaust port 212a. In front of the foremost exhaust port 212a, a peripheral portion 212A that forms the foremost exhaust port 212a together with the reinforcing ribs 211B and 211C is provided. As shown in FIG. 9, the peripheral portion 212A includes a projecting portion 212B bent upward.

  The switching unit 215 is rotatably provided on the lower surface of the main body side housing 11, and can close the exhaust port 212a. More specifically, the switching unit 215 can rotate between a first position shown in FIG. 9 and a second position shown in FIG. The switching unit 215 includes a guide unit 215A for guiding exhaust air, a support unit 215B supported by the exhaust port 212a, and a recess 215c for fixing the position of the switching unit 215. The guide portion 215A guides the exhaust from the fan 19 toward the downstream side (rear) in the suction direction A (FIG. 9) from the suction port 12c when the switching portion 215 is in the first position. That is, the exhaust from the fan 19 is discharged in a direction away from the surface to be cleaned P. In the present embodiment, the cleaning symmetry plane P is a direction substantially orthogonal to the suction direction A. However, if the cleaning symmetry plane is a direction that intersects the suction direction A, the dust on the cleaning symmetry plane P can be sucked. it can. Rather than exhausting directly downward from the exhaust port 212a provided on the lower surface of the main housing 11, the guide part 215A guides it backwards to prevent surrounding dust from rising when the hand-held cleaner 201 is used. it can. In the present embodiment, in the state shown in FIG. 11, the angle of the guide portion 215A is inclined downward by about 30 ° with respect to the horizontal direction. When the switching unit 215 is in the second position, the guide unit 215A functions as a lid that closes the exhaust port 112a.

  The support portion 215B is provided so as to extend obliquely forward from the front portion of the guide portion 215A, and has a front end portion 215C positioned at the forefront. A plate 216 is provided on the support portion 215B. The switching unit 215 and the plate 216 are composed of different members. The support portion 215B is formed with a groove (not shown) for avoiding interference with the reinforcing rib 211C when attached to the main body side housing 11. The groove (not shown) is a substantially central portion in the left-right direction of the support portion 215B, and is formed at a position corresponding to the reinforcing rib 211C. When the switching part 215 is assembled to the main body side housing 11, the tip part of the guide part 215A of the switching part 215 is brought into contact with the peripheral part 212A, and the tip part 215C of the support part 215B is brought into contact with the protruding part 212B. As a result, the peripheral portion 212A is sandwiched between the support portion 215B and the guide portion 215A, so that the switching portion 215 is temporarily held in the main body side housing 11. By fixing the plate 216 to the upper part of the support part 215B, the switching part 215 is rotatably supported by the main body side housing 11. The plate 216 corresponds to the selection unit of the present invention.

  The plate 216 is substantially rectangular, and when the switching unit 215 is in the first position, the communication between the passage 16b and the motor housing space 11b is blocked (FIGS. 11 and 12). When the switching unit 215 is in the second position Communicates with the passage 16b and the motor housing space 11b (FIGS. 13 to 15). Specifically, when the switching unit 215 is in the first position, the upper end of the plate 216 is in contact with the upper wall of the passage 16b and guides the air from the fan 19 to the switching unit 215. When the switching unit 215 is in the second position, the upper end of the plate 216 is separated from the upper wall of the passage 16b.

  Next, the operation of the handheld cleaner 201 will be described. When a stronger suction force is required, the switching unit 215 is arranged at the first position as shown in FIG. 11 (suction mode). Next, when the user of the hand-held cleaner 201 operates the trigger 13, the motor 18 is rotationally driven to rotate the fan 19. Thereby, air flows in from the suction port 12 c along the suction direction A, and the air passes through the prefilter 217 A and the filter medium 217 B and flows into the fan 19. Then, the traveling direction is bent by about 90 ° by the fan 19 and is discharged to the outside of the main body side housing 11 while being guided from the plurality of exhaust ports 112a to the guide portion 215A. In the suction mode, all of the air that has flowed into the cover-side housing 212 from the suction port 12c is discharged from the exhaust port 212a.

  When the blower that blows out air from the blowout port 16a is performed and suction from the suction port 12c is also performed, the switching unit 215 is disposed at the second position (blower mode) as shown in FIG. Next, when the user of the handheld cleaner 201 operates the trigger 13, the motor 18 is driven to rotate and the fan 19 rotates. As a result, air flows in from the suction port 12 c along the suction direction A, and the air passes through the prefilter 217 A and the filter medium 217 B and flows into the fan 19. Then, the air whose traveling direction is bent by about 90 ° by the fan 19 passes between the plate 216 and the upper wall of the passage 16b, flows in the air blowing pipe portion 16, and is blown out from the blowing port 16a. In the blower mode, all of the air that flows into the cover-side main body from the suction port 12c is blown out from the blowout port 16a. The air discharged from the air outlet 16a plays a role of actively guiding dust around the air inlet 12c to the air inlet 12c.

  The air sucked from the suction port 12c is discharged from the plurality of exhaust ports 212a in the direction away from the surface P to be cleaned, so that surrounding dust can be prevented from being rolled up by the air exhausted when the handheld cleaner 201 is used. Thereby, surrounding dust can be efficiently collected by the hand-held cleaner 201.

  Further, since the exhaust from the plurality of exhaust ports 212a can be discharged from the blowout port 16a by switching the switching unit 215, the surrounding dust is wound up by the air exhausted when the handheld cleaner 201 is used. Can be prevented. Thereby, surrounding dust can be efficiently collected by the hand-held cleaner 201.

  Further, since the switching unit 215 guides the air discharged from the plurality of exhaust ports 212a, it is not necessary to provide a separate member for guiding the exhaust from the exhaust ports 212a, and the number of parts can be reduced.

  Further, since the switching unit 215 includes the guide unit 215A for guiding the exhaust air and the selection unit 216 for switching the air flow path, the exhaust air can be switched with a simple configuration.

  In addition, since the suction port 12c and the blowout port 16a are disposed adjacent to each other, the dust can be collected extremely effectively by preventing air from being blown out from the blowout port 16a when it is desired to collect dust exclusively. it can. Further, since the air blown out from the blowout port 16a is sucked into the suction port 12c, dust around the blowout port 16a can be positively collected.

  Further, since the handle portion 11C has a plurality of exhaust ports 212a located on the opposite side of the motor 18 from the side where the handle portion 11C is provided, the exhaust air is blown directly to the user holding the handheld cleaner 201. Can be prevented.

  Further, the air sucked from the air suction direction can be discharged outward in the radial direction of the motor 18. Thus, air can be discharged with a simple configuration without bending the air passage.

  The hand-held cleaner of the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made within the scope described in the claims. For example, the shape of the housing or the battery pack is not limited to the shape of the present embodiment. In particular, the configuration is not limited to the configuration of the opening / closing lid 123, the inlet opening / closing slit portion 122, the blowout amount adjusting portion 15 and the like according to the present embodiment, and any configuration capable of adjusting the amount of air flow may be used.

  In the third embodiment, the switching unit 215 is movable between the first position and the second position, but may be stopped at an intermediate point between the first position and the second position. Thereby, the amount of air blown out from the blowout port 16a can be finely adjusted.

  In the third embodiment, the switching unit 215 is held in the main body side housing 11 by sandwiching the peripheral portion 212A between the support portion 215B and the guide portion 215A, but is not limited thereto. For example, the switching unit 215 may be supported by the main body housing 11 so as to be rotatable about a pin extending in the left-right direction.

  In the third embodiment, the angle of the guide portion 215A is inclined about 30 ° downward with respect to the horizontal direction. However, the angle is not limited to this angle, and the exhaust is performed in a direction away from the surface P to be cleaned. It only has to be done.

  The hand-held cleaner of the present invention is particularly useful in the field of hand-held cleaners having both an air blowing function and a suction function.

DESCRIPTION OF SYMBOLS 1 ... Hand-held cleaner 10 ... Housing 11 ... Main body side housing 12 ... Cover side housing 12a ... Slit-like through-hole 12b ... Outlet side opening part 12c ... Dust collection port 15・ ・ ・ Blowout amount adjustment part 15a ・ ・ ・ Notch 16a ・ ・ ・ Blowout port 17 ・ ・ ・ Dust collection filter 18 ・ ・ ・ Motor 19 ・ ・ ・ Fan 112d ・ ・ ・ Air inlet 122 ・ ・ ・ Inlet opening / closing Slit part 123 ... Opening / closing lid 201 ... Hand-held cleaner 212 ... Cover side housing 215 ... Switching part 2155A ... Guide part 216 ... Plate 217 ... Dust collection filter

Claims (8)

A housing formed with an air discharge port, an air suction port, and an air passage connecting the air discharge port and the air suction port;
A motor housed in the housing;
A fan disposed in the air passage and driven to rotate by the motor;
A dust collecting filter provided in the air passage and between the fan and the air suction port, and the rotation of the fan sucks air from the air suction port into the air passage. A hand-held cleaner that cleans the surface to be cleaned by discharging from the air outlet,
Exhaust gas from the air discharge port is discharged in a direction away from the surface to be cleaned. The housing is formed with an air blowing port capable of blowing out at least a part of the air flowing into the air passage from the air suction port to the outside of the air passage,
The hand-held cleaner according to claim 1, further comprising a switching unit that switches the discharge of the air that has flowed into the air passage between the air discharge port and the air outlet.   The hand-held cleaner according to claim 2, wherein the exhaust from the air discharge port is discharged in a direction away from the surface to be cleaned by being guided by the switching unit.   The hand-held cleaner according to claim 2, wherein the switching unit is configured to be rotatable with respect to the housing. The switching unit is between a first position for guiding the air flowing into the air passage to the air discharge port and a second position for guiding the air flowing into the air passage to the air outlet. Is movable,
The switching unit guides the air in a direction away from the surface to be cleaned when in the first position, and the air suction port and the air outlet when in the first position. 5. The selection unit according to claim 2, further comprising: a selection unit that blocks communication between the air suction port and the air blowing port when the communication is in the second position. Handheld cleaner.   The hand-held cleaner according to any one of claims 2 to 5, wherein the air suction port and the air blowing port are disposed adjacent to each other.   The said housing has a handle part which an operator holds, The said air exhaust port is formed in the opposite side to the side in which the said handle part is provided to the motor. The handheld cleaner according to any one of 1 to 6.   The hand-held cleaner according to any one of claims 1 to 7, wherein the fan is a centrifugal fan, and the air passage guides air discharged from the centrifugal fan to the air discharge port. .

Images