JP2019122659A - Vacuum cleaner - Google Patents

Abstract

To provide a vacuum cleaner capable of reducing a number of components and weight, and surely promoting a user to correctly use the cleaner.SOLUTION: A vacuum cleaner comprises: a dust collection unit; a drive unit having an attachment part to which the dust collection unit is detachably attached; and a lock mechanism part for detachably attaching the dust collection unit to the attachment part of the drive unit. The dust collection unit has a filter part, a filter holding part for detachably holding the filter part, and a dust cup part for detachably holding the filter holding part. The lock mechanism part has a first engagement part provided on the attachment part of the drive unit, and a second engagement part provide on the filter part so as to be freely engaged to/released from the first engagement part.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a vacuum cleaner.

As a conventional vacuum cleaner, for example, Patent Document 1 discloses a handy-type vacuum cleaner provided with a vacuum cleaner main body in which a dust collection unit can be detachably mounted to a mounting portion of a drive device.
In the vacuum cleaner of Patent Document 1, the dust collection unit is detachably attachable to a first filter portion having a mesh filter for collecting large dust and a cup portion provided on the mesh filter, and a cup portion of the first filter portion A second filter unit that is mounted and that collects fine dust, a dust cup that detachably holds the first filter unit, and a cup cover that covers the second filter unit that is mounted to the first filter unit.

  Furthermore, the dust collection unit maintains the mounting state of the dust collection unit to the mounting portion of the drive device and the first lock mechanism provided on the dust cup so as to maintain the mounting state of the first filter portion to the dust cup Thus, the second lock mechanism provided on the cup cover and the forgetting prevention mechanism provided on the first filter portion are provided.

  When the second filter portion is not attached to the first filter portion, the forgetting prevention mechanism moves to a position where the forgetting mechanism is hooked on a part of the cup cover so that the cup cover reaches the first filter portion to the end. It functions as a forgetfulness prevention mechanism by becoming unable to attach. This forgetting prevention mechanism makes the user notice that the second filter unit is not attached and urges the use of the correct vacuum cleaner, and drives the vacuum cleaner without the second filter unit to suck dust It is possible to prevent the failure of the drive device.

JP, 2017-000395, A

  In recent years, weight reduction has been demanded particularly for handy type vacuum cleaners as disclosed in Patent Document 1. Further, in the case of the vacuum cleaner of Patent Document 1, the user forcibly mounts the dust collection unit (the assembly of the first filter portion and the dust cup) in which the second filter portion is not incorporated into the mounting portion of the drive device. There was a risk of using it.

  The present invention is made in view of such a subject, and it aims at providing a vacuum cleaner which can certainly urge a user correct use, aiming at reduction of a number of parts, and weight reduction.

Thus, according to the present invention, the dust collecting unit, a drive unit having a mounting portion for detachably mounting the dust collection unit, and a lock mechanism unit which makes the dust collection unit detachable from the drive unit ,
The dust collection unit includes a filter unit, a filter holding unit that detachably holds the filter unit, and a dust cup unit that detachably holds the filter holding unit.
The lock mechanism portion has a first locking portion provided in the mounting portion of the drive device, and a second locking portion provided in the filter portion so as to be disengageable from the first locking portion. A vacuum cleaner is provided.

According to the vacuum cleaner of the present invention, the dust collection unit incorporating the filter part, the filter holding part and the dust cup is mounted on the mounting part of the drive device, and the second locking part on the filter part side in the lock mechanism part Since it is configured to be locked to the first locking portion on the drive device side to maintain the attached state of the dust collection unit, the dust collection unit (the filter holding portion and the dust cup) Even if it is attempted to mount the assembled body on the mounting portion of the drive device, it can not be mounted. That is, in addition to the function of collecting dust, the filter unit has a function of preventing the filter unit from being forgotten, and a function of maintaining the mounting state of the dust collection unit on the mounting unit.
Therefore, since it is not necessary to provide an attachment forgetting prevention mechanism separately from the filter unit, it is possible to certainly prompt the user to use the apparatus properly while reducing the number of parts and the weight of the dust collection unit.

It is a left side view showing Embodiment 1 of the vacuum cleaner of the present invention. It is a left view which shows the cleaner body in the vacuum cleaner of Embodiment 1. FIG. It is a sectional side view of the cleaner body of FIG. It is a perspective view of the cleaner body of FIG. FIG. 2 is a side sectional view showing a dust collection unit in the cleaner body of the first embodiment. It is a perspective view which shows the filter part in the dust collection unit of FIG. It is a filter part of Drawing 3, and (A) is a lock state of the 2nd stop of a lock mechanism part, (B) is a longitudinal section showing a lock release state. It is the state which removed the filter part from the dust collection unit of FIG. 3, (A) is a front view, (B) is a perspective view. It is an II line arrow directional cross-sectional view of FIG. 8 (A). It is a side sectional view showing the state where a dust collection unit in Embodiment 1 is attached to a drive. It is a sectional side view which shows the state which mounted | wore the drive device with the dust collection unit in which the filter part in Embodiment 1 is not integrated. FIG. 8 is a side cross sectional view showing a filter section in Embodiment 2. FIG. 10 is an enlarged cross-sectional view showing a first engaging portion of the drive device in Embodiment 2. It is the schematic explaining the internal structure of the vacuum cleaner of Embodiment 3. FIG. It is the schematic which shows the state which mounted | wore the drive device with the dust collection unit in which the filter part in the vacuum cleaner of FIG. 14 is not integrated.

(Embodiment 1)
FIG. 1 is a left side view showing a vacuum cleaner according to a first embodiment of the present invention.
The vacuum cleaner 1 of the first embodiment includes a cleaner body 10, an extension pipe 20, and a suction port 40. As the extension tube 20, it does not need to be concerned with the presence or absence of the structure which can extend the tube itself. If the suction port body 40 is attached to the vacuum cleaner body 20 via the extension tube 20 and cleaned, compared with a handy type in which the suction port body 40 is directly attached to the vacuum cleaner body 10 for cleaning, from the vacuum cleaner body 10 Cleaning can be performed as a stick type in which the distance to the suction port body 40 is increased.

<About the vacuum cleaner body>
2 is a left side view showing the vacuum cleaner main body in the electric vacuum cleaner of the first embodiment, FIG. 3 is a side sectional view of the vacuum cleaner main body of FIG. 2, and FIG. 4 is a perspective view of the vacuum cleaner main body of FIG. It is.
The cleaner body 10 includes a drive device 11, a cyclone type dust collection unit 12 and battery 13 detachably mounted on the drive device 11, and a lock mechanism 11 g that enables the dust collection unit 12 to be detachably mounted on the drive device 11. (Hereinafter referred to as a first lock mechanism 11g).

[Drive]
As shown in FIGS. 1 to 4, the drive device 11 includes a main body 11 a incorporating the electric blower 11 am, a battery mounting portion 11 b continuously provided to the main body 11 a, and the main body 11 a and the battery mounting portion 11 b. It has a handle 11c having both end portions provided in a row, and a suction cylindrical portion 11d provided in a row with a joint portion between the main body portion 11a and the handle 11c and projecting to the opposite side to the handle 11c.
Hereinafter, the left side in a state where the suction cylinder 11d side in the drive device 11 is forward, the handle 11c is backward, the battery mounting portion 11b is downward, the opposite side to the battery mounting portion 11b is upward, and the handle 11c is facing forward. The right side is described as the left direction and the right direction.

The body portion 11a is constituted the outer at the housing portion of the cylindrical lattice-like rib in its front opening 11a ₁ is provided with a front opening 11a _1.
Further, the main body portion 11a, and the inner flange is provided along the edge of the front opening 11a _1, the lower portion of the inner flange has a inner flange wide section 11a ₁₁ wide.
Furthermore, a front opening concave-shaped first locking portion 11g ₁ that engages with the inner rod wide portion 11a ₁₁ so as to be engageable with and disengaged from the claw-shaped second locking portion 11g ₂ provided in the dust collection unit 12 with a portion) is provided in the first lock mechanism portion 11g, the engagement recess 12c ₁₁ and locking projections 11a ₁₂ to detachably lock is provided which is provided in the dust collection unit 12.

The battery mounting portion 11b has a recess which is open downward and backward and provided with a terminal portion which can be electrically connected to the terminal portion of the battery 13 at the back, and the battery 13 is inserted into the recess from behind. And the battery 13 can be pulled out backward and removed from the recess.
Further, an exhaust port 11bx for discharging the air flow having passed through the electric blower 11am to the outside is formed on the right side surface of the housing constituting the battery mounting portion 11b.

The handle 11c is formed in a substantially U-shape, and the operation portion 11e is provided outside the upper curved portion.
As shown in FIGS. 3 and 4, the operating portion 11e is a pad made of a recess 11e ₁ provided in the upper curved portion of the handle 11c and an elastic material (rubber, elastomer, etc.) attached to the outside of the recess 11e _1. The motor blower 11am is driven and stopped by pressing the switch unit 11e ₃ via the pad portion 11e ₂ and having the switch portion 11e ₃ provided inside the housing 11e ₂ and the recess 11e ₁ (inside the housing). Adjustment of driving force can be operated.

As shown in FIGS. 2 to 4, the suction cylindrical portion 11 d is a cylindrical member extending in the front-rear direction, and has a recessed portion for storing the lock member 11 x ₁ and the hook member 11 x ₂ etc. the connection port 11x ₃ connectable to later-described inlet 12a ₂₃ of 12 have the left side of the front and rear intermediate portion.
In addition, the L-shaped portion, which is the overturned L-shaped portion along the lower surface of the suction cylindrical portion 11 d and the front opening 11 a ₁ of the main body 11 a, is a mounting portion to which the dust collection unit 12 is mounted.

Press locking member 11x ₁ is such that it can swing horizontally axis around is attached to the suction tube portion 11d, the front end portion of the locking member 11x ₁ is projecting from the hole formed in the suction tube portion 11d to the outside downward It functions as a button part. The rear end portion of the lock member 11x _1, when the extension pipe 20 is inserted into the front opening 11d ₁ of the suction tube portion 11d, the engaging recess of the extension tube 20 (not shown) and detachably engaged to function as the engagement claws 11x ₁₁ to focus. Between the locking member 11x ₁ and the suction tube portion 11d, a coil spring is provided for biasing the front end portion of the locking member 11x ₁ downward (outward).

Hook member 11x ₂ is a member that will be described later locking recess 12a ₂₁ and detachably locking the dust collecting unit 12 mounted on the cleaner body 10, lower external from the hole formed in the suction tube portion 11d Protruding to.

In addition, on the lower surface side of the rear end of the suction cylindrical portion 11d, another lock mechanism 12b ₁ (hereinafter referred to as a second lock mechanism 12b) of the dust collection unit 12 mounted on the mounting portion of the cleaner body 10 ₁ ) and a recess 11x ₁₂ into which the positioning projection 12c ₂₁ is fitted.

Further, on the front end face of the suction tube portion 11d, a pair of female terminal portions 11y ₁₂ which is electrically connected to the pair of lead wires drawn out from the main body portion 11a (not shown) is provided.
On the other hand, a pair of lead wires are also provided inside the extension tube 20, and at both ends of the extension tube 20, a pair of male terminal portions and a pair of female terminals not shown electrically connected to the pair of lead wires. A terminal portion is provided.
Then, by inserting one end of the extension tube 20 into the suction cylinder 11d of the drive device 11, the pair of male terminals of the extension tube 20 is inserted into the pair of female terminals 11y ₁₂ of the suction cylinder 11d. Connect electrically.

  Further, a rotary brush, a motor for driving the rotary brush, and a pair of lead wires drawn from the motor for driving the rotary brush are provided in the suction port body 40, and at the connection end of the suction port body 40 with the extension tube 20. A male terminal portion electrically connected to the pair of lead wires and electrically connectable to the pair of female terminal portions of the extension tube 20 is provided.

[Dust collection unit]
FIG. 5 is a side sectional view showing the dust collection unit in the cleaner body of the first embodiment, and FIG. 6 is a perspective view showing a filter portion in the dust collection unit of FIG. 7 is a filter part of FIG. 3, (A) is a lock state of the second locking part of the lock mechanism part, and (B) is a longitudinal sectional view showing a lock released state. Moreover, FIG. 8 is a state which removed the filter part from the dust collection unit of FIG. 3, (A) is a front view, (B) is a perspective view. FIG. 9 is a cross-sectional view taken along line I-I of FIG.

Dust collecting unit 12 includes a bottom 12a _1, a cylindrical dust cup portion 12a of the dust collecting container having an outer peripheral portion 12a ₂ and the opening 12a _3, the filter holding portion 12b to be fitted into the opening 12a ₃ of the dust cup portion 12a And a filter portion 12c removably received in the filter holding portion 12b, and an inner cylindrical portion 12d removably attached to the filter holding portion 12b so as to be received in the dust cup portion 12a.

ダ ス ト Dust cup section》
Dust cup portion 12a, together with the bottom portion 12a ₁ side to the engaging recess 12a ₂₁ on the center line P is provided in the outer peripheral portion 12a _2, locking the opening 12a ₃ side of the center line P in the outer peripheral portion 12a ₂ A part 12a ₂₂ is provided. Further, the dust cup portion 12a is viewed from the front, the inlet 12a ₂₃ for introducing the air containing dust is provided at a position shifted from the center line P in the outer peripheral portion 12a _2.

<< filter holding part >>
The filter holding portion 12b has a bottom portion having a center hole and an inverse tapered surface around the center hole, a cylindrical outer peripheral portion continuously connected to the bottom portion, the second lock mechanism portion 12b ₁ provided on the outer peripheral portion, and a bottom portion a pair of arcuate grooves 12b ₂ provided around the center hole in the bottom surface, first and packing 12b ₃ provided in the vicinity of the bottom of the outer peripheral portion, larger disposed over the bottom from the opening end portion at the outer peripheral portion 1 It has a notch 12 b ₄ and a small second notch 12 b ₅ provided at the open end of the outer peripheral portion. The first notch 12b ₄ is disposed on the back side, the second notch 12b ₅ is disposed on the front side.

The second locking mechanism 12b ₁ has a reverse U-shaped ribs provided on the outer circumferential surface of the filter holding portion 12b, the swing piece 12b ₁₁ swingably mounted to the horizontal axis around the rib, rocking the engagement claw 12b ₁₂ for engagement projections 12a ₂₂ and detachably lock the dust cup portion 12a provided at the lower end of Dohen 12b _11, engagement claws 12b ₁₂ on the locking projections 12a ₂₂ And a coil spring 12b ₁₃ biased in the stopping direction.

<< filter part >>
Filter unit 12c, a pleated filter body 12c ₁ having an outer peripheral frame portion of the annular, the packing portion 12c ₂ that covers the outer periphery of the outer peripheral frame portion of the filter main body 12c _1, provided on the outer peripheral portion of the packing portion 12c ₂ was a second engaging portion 11g ₂ of the filter portion 12c side of the first lock mechanism portion 11g.
Then, together with the locking recess 12c ₁₁ which opens radially inward on the inner peripheral surface of the outer peripheral frame portion of the filter main body 12c ₁ it is provided, and the positioning protrusions 12c ₂₁ is provided on the outer circumferential surface of the packing portion 12c ₂ There is. The locking recess 12c ₁₁ and the positioning protrusion 12c ₂₁ are disposed at substantially opposite positions to each other, and the hanging wall 12c extending in the vertical direction on the locking recess 12c ₁₁ side in the outer peripheral portion of the packing 12c _{2 22} are connected in a row.

The second engaging portion 11g ₂ includes a slide portion 11g ₂₁ mounted for vertical slide in the hanging wall portions 12c ₂₂ of the packing portion 12c _2, first locking mechanism 11g is provided on the upper end portion of the slide portion 11g ₂₁ A locking claw 11g ₂₂ that locks the first locking portion 11g ₁ (FIG. 3, FIG. 4) on the driving device 11 side in a detachable manner and a locking claw 11g ₂₂ on the first locking portion 11g ₁ And a coil spring 11g ₂₃ for biasing in the direction of stopping. Incidentally, the locking claw 11g ₂₂ is inclined surface 11g ₂₂₁ inclined toward the center of the first peripheral wall portion of the engaging portion 11g ₁ in sliding contact as the filter portion 12c when the first locking portion 11g ₁ and locking have.

When the filter portion 12c is fitted into the opening of the filter holding portion 12b, the hanging wall portion 12c ₂₂ of the filter portion 12c is dropped into the first notch 12b ₄ of the filter holding portion 12b, and the positioning convex portion 12c of the filter portion 12c ₂₁ is dropped into the second notch 12b ₅ of the filter holder 12b and positioned. Thus, the packing portion 12c ₂ is supported in close contact with the stepped portion provided in the opening peripheral surface of the filter holding portion 12b.

<< inner cylinder part >>
The inner cylindrical portion 12d has a cylindrical filter unit 12d ₁ removably attached to the filter holding portion 12b, and the partitioning member 12d ₂ of tubular detachably attached to the cylindrical filter unit 12d _1.
Cylindrical filter unit 12d ₁ includes a tubular frame member 12d ₁₁ having a plurality of slits extending in the axial direction, and a mesh member 12d ₁₂ provided on the outer periphery of the tubular frame body 12d _11.
The cylindrical frame 12d ₁₁ is provided at the upper end of the outer peripheral portion thereof, and at the lower end of the outer peripheral portion, a pair of locking pieces 12d ₁₁₁ engageably and detachably engaged with the pair of arc-shaped grooves 12b _{2 of} the filter holding portion 12b. It has a pair of locking pieces 12d ₁₁₂ which are provided and which engage and disengageably engage with a pair of arcuate grooves 12d ₂₃₁ described later of the partition member 12d ₂ .

Partitioning member 12d ₂ includes a small-diameter cylindrical portion 12d _21, a large-diameter cylindrical portion 12d _22, and a flange portion 12d ₂₃ which connects the inner peripheral surface of an upper end of the small diameter cylinder portion 12d ₂₁ large-diameter portion 12d ₂₂ Have.
Flange portion 12d ₂₃ has a pair of said arcuate groove 12d ₂₃₁ to the pair of engaging pieces 12d ₁₁₂ and detachably engaging the lower end of the cylindrical filter portion 12d ₁ provided on its upper surface.

The large diameter cylindrical portion 12d ₂₂ has an outer flange 12d ₂₂₁ at its lower end, and dust accumulated in the lower portion of the dust cup portion 12a by this outer flange 12d ₂₂₁ soars by the swirling air flow, and dust that soars up is an inner cylindrical portion a suction force reduction caused by attaching the cylindrical filter portion 12d ₁ and 12d can be suppressed.

In the assembled state of the dust collection unit 12, the small diameter cylindrical portion 12d ₂₁ of the partition member 12d ₂ fits into the positioning cylindrical portion 12a ₂₄ provided on the inner bottom surface of the dust cup portion 12a, and around the positioning cylindrical portion 12a ₂₄ It abuts on the provided packing 12a ₂₅ . In this state, in the dust cup portion 12a, a space is formed under the large diameter cylindrical portion 12d ₂₂ of the partition member 12d _{2 so} that a mass of dust can be collected.

[Removal of Dust Cup Unit to Drive Unit]
FIG. 10 is a side cross-sectional view showing a state in which the dust collection unit in the first embodiment is mounted on the drive device, and FIG. 11 is a state in which the dust collection unit in the first embodiment is not mounted. It is a sectional side view shown.
When mounting the dust collection unit 12 (with the filter portion 12c) to the drive device 11, as shown in FIG. 10, the dust collection unit 12 is locked in a state where the dust collection unit 12 is inclined to the suction cylinder portion 11d. The recess 12 a ₂₁ is hooked on the hook member 11 x ₂ of the drive device 11. Then, by making the dust collection unit 12 parallel to the suction cylinder 11 d with the hook member 11 x ₂ as a fulcrum, the second locking portion 11 g ₂ on the dust collection unit 12 side in the first lock mechanism 11 g The locking claws 11g ₂₂ are locked to the first locking portion 11g ₁ on the drive device 11 side, and the locking concave portion 12c ₁₁ of the dust collection unit 12 is locked to the locking convex portion 11a ₁₂ of the drive device 11 , Installation is complete.

When the dust collection unit 12 is removed from the drive device 11, the dust collection unit 12 with the hook member 11x ₂ as a fulcrum in a state where the slide member 11g ₂₁ of the first lock mechanism 11g is pushed down (see FIG. 7B). Can be easily removed by inclining it with respect to the suction cylinder part 11d.

On the other hand, as shown in FIG. 11, when the dust collection unit in which the filter portion 12c is not incorporated in the filter holding portion 12b is attached to the drive device 11, the locking recess 12a ₂₁ on the dust cup portion 12a side of the dust collection unit locking the hook member 11x ₂ suction tube portion 11d side of the drive unit 11 but, since the filter holding portion 12b side of the dust collecting unit can not be the main part 11a side and the locking of the drive unit 11 releases the hand from the dust collection unit And it will fall.
Thus, the user can notice that the dust collection unit can not be attached to the drive device 11 because the filter unit is not incorporated in the dust collection unit.

  That is, according to the vacuum cleaner of the present invention, the filter unit 12c itself has the function of preventing forgetting to attach, so that the user notices that the filter unit 12c is not attached and correct use of the vacuum cleaner While prompting, it is possible to drive the vacuum cleaner without the filter portion 12c, and to prevent the malfunction that the drive device 11 that has sucked the dust breaks down. In addition, since the mounting forgetting prevention mechanism on the drive device side which has been conventionally required can be omitted, the number of parts of the vacuum cleaner can be reduced and the structure can be simplified.

Second Embodiment
FIG. 12 is a side cross sectional view showing the filter portion in the second embodiment, and FIG. 13 is an enlarged cross sectional view showing a first engaging portion of the drive device in the second embodiment. In FIGS. 12 and 13, the same elements as those in FIGS. 3, 5 and 7 are denoted by the same reference numerals.
The vacuum cleaner of the second embodiment is the same as the vacuum cleaner of the first embodiment except that the configuration of the first lock mechanism 111g is different from the configuration of the first lock mechanism 11g of the first embodiment.

As shown in FIGS. 12 and 13, the first lock mechanism portion 111g of the second embodiment, the first locking portion 111g ₁ having a locking hole 111g ₁₂ provided in the drive device 11 side, the first engagement and a second locking portion 111g of the disengageable dust collecting unit side ₂ to the locking hole 111g ₁₂ of the stop portion 111g _1.
The first locking portion 111 g ₁ has a first engaging portion 11g ₁ (see FIG. 10) similar to the locking recess 111 g ₁₁ in the first embodiment, passed through an outer peripheral wall portion of the engagement recess 111 g ₁₁ engaging comprising a stop hole section 111 g _12.

The second locking portion 111 g ₂ is directed elastically deformable locking piece portion 111 g ₂₁ provided on the outer peripheral portion of the filter portion 112c of the dust collection unit, to the outside the tip portion of the locking piece portion 111 g ₂₁ provided The locking hole 111g ₁₂ of the first locking portion 111g ₁ has a locking protrusion 111g ₂₂ that can be engaged and disengaged. Although it exemplified a structure in which the second locking portion 111 g ₂ is provided obliquely protruded from a portion of the outer peripheral portion of Figure 12 the filter body 12c ₁ passing through the packing part 12c ₂ in the outer peripheral of the packing portion 12c ₂ the second locking portion 111 g ₂ may be provided in some parts.

Also in the case of the second embodiment, as in the first embodiment (see FIG. 10), the locking recess 12a ₂₁ of the dust collection unit 12 in the drive device 110 is in a state where the dust collection unit 12 is inclined to the suction cylinder 11d. hooked on the hook member 11x _2. Then, by making the dust collection unit 12 parallel to the suction cylinder 11 d with the hook member 11 x ₂ as a fulcrum, the second locking portion 111 g ₂ on the dust collection unit 12 side in the first lock mechanism 111 g The locking piece 111g ₂₁ elastically deforms, and the locking projection 111g ₂₂ enters the locking recess 111g ₁₁ of the first locking portion 111g ₁ on the drive device 11 side and locks in the locking hole 111g ₁₂ At the same time, the locking concave portion 12c ₁₁ of the dust collection unit 12 is locked to the locking convex portion 11a ₁₂ of the drive device 11, and the mounting is completed.
According to the first lock mechanism portion 111g of the second embodiment, it is possible to simplify the structure to reduce the second parts of the engaging portion 111g _2.

When the dust collection unit 12 is removed from the drive device 11, the locking projection 111g ₂₂ is engaged by pushing the locking piece 111g ₂₁ of the second locking portion 111g ₂ of the first lock mechanism 11g with a finger. The dust collection unit 12 can be easily removed by inclining the dust collection unit 12 with respect to the suction cylindrical portion 11 d with the hook member 11 x ₂ as a fulcrum by disengaging from the stop hole 111 g ₁₂ .

On the other hand, as described in FIG. 11, also in the second embodiment, when the dust collection unit in which the filter portion 112 c is not incorporated in the filter holding portion 12 b is attached to the drive device 11, the dust cup 12 a side of the dust collection unit 12 is The locking recess 12a ₂₁ is locked to the hook member 11x ₂ on the suction cylindrical portion 11d side of the drive device 11, but the filter holding portion 12b side of the dust collection unit can not be locked to the main body portion 11a side of the drive device 11. It will fall if the hand is released from the dust collection unit.
Thus, the user can notice that the dust collection unit can not be attached to the drive device 11 because the filter unit is not incorporated in the dust collection unit.

(Embodiment 3)
FIG. 14 is a schematic view for explaining the internal structure of the vacuum cleaner of the third embodiment, and FIG. 15 shows a state in which the dust collection unit without the filter unit in the vacuum cleaner of FIG. FIG.
The first lock mechanism having the function of preventing attachment failure of the filter described in the first and second embodiments can also be applied to a cyclone type canister type electric vacuum cleaner 201 as shown in FIG.

First, the configuration of the canister type vacuum cleaner 201 will be briefly described.
The vacuum cleaner 201 has a drive unit 211 having a built-in electric blower 211am, and a cyclone type dust collection unit 212 detachably mounted on a front opening-like mounting recess 211a as a mounting portion of the drive unit 211. The vacuum cleaner body 210 is provided.

The drive device 211 includes a pair of wheels 211 wr provided on the left and right sides of the rear of the case, a front wheel 211 wf provided on the bottom of the lower portion of the mounting recess 211 a of the case, and a handle 211 b provided on the upper wall portion. And an exhaust port 211c provided in the rear wall, and a connection portion 211d provided in the lower front end of the mounting recess 211a and detachably connected to the flexible hose 220.
Further, it mounted with the rear surfaces of the recess portion 211a is provided with the dust cup portion 212a inlet 212a ₂₃ and connectable connection port 211x ₃ of the dust collecting unit 212, the dust collecting unit 212 in the upper wall of the mounting recess 211a lower opening 211a ₁ connectable is provided a filter unit 212c.
The flexible hose 220 is connected to the suction port (not shown) via an extension pipe having an operation unit for operating the drive and stop of the electric blower 211am.

  The dust collection unit 212 is configured in the same manner as the dust collection unit 12 described in the first embodiment (FIGS. 3 and 5, etc.), and is a filter that is detachably attached to the dust cup 212a and the dust cup 212a. It has a holding portion 212b and a filter portion 212c and an inner cylindrical portion 212d which are detachably mounted to the filter holding portion 212b.

The first lock mechanism portion 211g is also configured in the same manner as the first lock mechanism portion 11g described in the first embodiment (FIG. 3 and FIG. 5 etc.), and provided at the upper front end of the mounting recess 211a of the drive device 211. It includes a first locking portion 211g ₁ of lower opening concave, and a second locking portion 211g provided on the outer peripheral portion of the filter portion 212c of the dust collection unit 212 _2.

According to this electric vacuum cleaner 201, when the electric blower 211am is driven, air containing dust passes from the connection portion 211d of the drive device 211 through the air passages at the lower and rear portions of the mounting recess 211a, It flows into the dust cup portion 212a. Arrows in FIG. 14 indicate the flow of air.
Then, the air from which relatively large dust has been removed passes through the mesh member of the inner cylindrical portion 212d and flows into the filter holding portion 212b, and the air from which fine dust is removed passes through the filter portion 212c to drive the drive device The air flows from the upper portion of the mounting recess 211a into the inside of the mounting recess 211a and is discharged from the exhaust port 211c in the rear through the ventilation path in which the electric blower 211am in the rear and the circuit board 211s in the lower portion are accommodated.

In this vacuum cleaner 201, when mounting the dust collection unit 212 to the mounting recess 211a of the drive unit 211 (Yes Filter unit 212c) are directed toward the second engaging portion 211g ₂ of the first lock mechanism portion 211g in front When state go fitting the dust collection unit 212 to the inner part of the mounting recess 211a, the first locking dust collection unit 212 side second locking portion 211g ₂ of the driving device 211 side in the first lock mechanism portion 211g It locks to part 211g ₁ and installation is completed.

Note that when detaching the dust collection unit 212 from the drive device 211 is disengaged from the first locking portion 211 g ₁ by second sliding the locking portion 211 g ₂ to below the first locking mechanism 211 g, in this state The dust collection unit 212 can be easily removed from the mounting recess 211a by moving it to the front.

On the other hand, as shown in FIG. 15, also in the third embodiment, when the dust collection unit in which the filter portion 212c is not incorporated in the filter holding portion 212b is attached to the mounting recess 211a of the drive device 211, A gap S is formed between the dust unit and the filter holding portion 212c, and the dust collection unit is not fixed to the mounting recess 211a.
Thus, the user can notice that the dust collection unit can not be attached to the drive device 211 because the filter unit 212 c is not incorporated in the dust collection unit. Incidentally, inconvenience even when driving the electric blower 211am in this state, the air from the space S flows into the lower opening 211a ₁ of the mounting recess 211a, air containing dust fails to flow into the drive unit 211 Does not occur.

(Other embodiment 1)
1. The first lock mechanism in the third embodiment may be changed to the first lock mechanism in the second embodiment.
2. In the vacuum cleaners according to the first to third embodiments, the first lock mechanism and the second lock of the first lock mechanism having the function of preventing attachment failure of the filter are provided in the drive unit and the filter of the cyclone type dust collection unit. Although the case has been illustrated, the present invention is not limited to this, and may be applied to a vacuum cleaner in which a paper pack as a dust collection unit is detachably mounted on the drive device. In this case, for example, the paper pack or the paper pack holding frame is provided with the concave first locking portion of the first locking mechanism portion, and the opening / closing lid of the dust collection chamber of the drive device has a convex shape of the first locking mechanism portion. A second locking portion may be provided so that the open / close lid is not completely closed unless the second locking portion is locked to the first locking portion. By not closing the cover completely, the user can notice that the paper pack is not attached or correctly attached to the drive.

(Summary)
A vacuum cleaner according to the present invention comprises a dust collection unit, a drive unit having a mounting portion for detachably mounting the dust collection unit, and a lock mechanism portion capable of detachably mounting the dust collection unit on the mounting portion of the drive unit. Equipped with
The dust collection unit includes a filter unit, a filter holding unit that detachably holds the filter unit, and a dust cup unit that detachably holds the filter holding unit.
The lock mechanism portion has a first locking portion provided in the mounting portion of the drive device, and a second locking portion provided in the filter portion so as to be disengageable from the first locking portion. .

The vacuum cleaner of the present invention may be configured as follows, and they may be combined as appropriate.
(1) The first locking portion has a locking recess,
The second locking portion may have a locking claw and a biasing member that biases the locking claw in a direction to lock the locking claw in the locking recess.
According to this configuration, when the dust collection unit mounted on the mounting portion of the drive device is removed, it can be separated from the locking recess by sliding the locking claw in the direction opposite to the biasing direction of the biasing member. .

(2) The first locking portion has a locking hole,
The second engaging portion is elastically deformable in a direction in which the engaging convex portion is engaged with or disengaged from the engaging hole, and the engaging convex portion engages with the engaging hole. And a locking piece.
According to this configuration, when removing the dust collection unit mounted on the mounting portion of the drive device, the locking convex portion can be released from the locking hole by pushing the locking piece. Moreover, the number of parts of the second locking portion can be reduced to simplify the structure.

(3) The drive unit may be a handy type having a handle.
According to this configuration, it is advantageous to reduce the weight of the handy type vacuum cleaner that is particularly required to reduce the weight.

(4) The drive unit may be a canister type having wheels.
Even in the case of the canister type vacuum cleaner, the user may carry out cleaning while holding the cleaner body. With this configuration, it is possible to cope with the weight reduction of the cleaner body.

  It should be understood that the disclosed embodiments are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the above description but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

1,201 vacuum cleaner 11, 211 drive 11c handle 11g, 111 g, 211 g first locking mechanism 11g _1, 111 g _1, 211 g ₁ first locking portion 11g _2, 111 g _2, 211 g ₂ second locking portion 11g Reference Signs List ₂₂ locking claw 11g ₂₃ biasing member 12, 212 dust collecting unit 12a, 212a dust cup portion 12b, 212b filter holding portion 12c, 112c, 212c filter portion 111g ₁₂ locking hole portion 111g ₂₁ locking piece portion 111g ₂₂ locking Convex part 211a Mounting concave part 211wr Wheel

Claims (5)

A drive unit having a dust collection unit, a mounting unit to which the dust collection unit is detachably mounted, and a lock mechanism unit that enables the dust collection unit to be detachably mounted on the drive unit;
The dust collection unit includes a filter unit, a filter holding unit that detachably holds the filter unit, and a dust cup unit that detachably holds the filter holding unit.
The lock mechanism portion has a first locking portion provided in the mounting portion of the drive device, and a second locking portion provided in the filter portion so as to be disengageable from the first locking portion. A vacuum cleaner characterized by The first locking portion has a locking recess,
The electric vacuum cleaner according to claim 1, wherein the second locking portion has a locking claw and a biasing member that biases the locking claw in a direction to lock the locking claw in the locking recess. The first locking portion has a locking hole;
The second engaging portion is elastically deformable in a direction in which the engaging convex portion is engaged with or disengaged from the engaging hole, and the engaging convex portion engages with the engaging hole. The vacuum cleaner according to claim 1, further comprising a locking piece.   The vacuum cleaner according to any one of claims 1 to 3, wherein the drive device is a handy type having a handle.   The vacuum cleaner according to any one of claims 1 to 3, wherein the drive device is a canister type having wheels.