JP6313953B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner.

As an electric vacuum cleaner, one having a built-in cord reel in the main body of the vacuum cleaner is generally used, but one in which a battery is detachably attached to the main body of the vacuum cleaner has also been proposed.
In this regard, Patent Document 1 discloses a vacuum cleaner body in which a lower case with a built-in dust collection chamber and an upper case with a built-in electric blower are detachably connected by a clamp, and connected to the vacuum cleaner body. A vacuum cleaner comprising a dust collecting hose and a battery pack that is detachably stored in the battery storage chamber of the upper case, and that can be easily replaced by pulling the battery pack in the battery storage chamber upward. Has been.

Japanese Patent Laid-Open No. 2003-235772

The electric vacuum cleaner of Patent Literature 1 is configured to unlock the clamp, open the upper case, take out the bag in which the dust has accumulated, and discard the dust.
On the other hand, the current home vacuum cleaners are mainly the paper pack type and the cyclone type.

  As a paper pack type vacuum cleaner, there is one configured to open a cover that covers the front upper part of the housing of the vacuum cleaner body, take out a paper pack in which dust is accumulated, and replace it with a new one.

  As a cyclone type electric vacuum cleaner, a dust cup is detachably provided at the front of the vacuum cleaner main body, and the dust cup is drawn upward from the vacuum cleaner main body so that the internal garbage can be discarded. There is something.

  An object of this invention is to provide the vacuum cleaner which can replace a battery with respect to a cleaner main body.

Thus, according to the present invention, an electric blower, a housing for housing the electric blower, and a wheel supported by the housing are provided,
A suction hose part is connected to the front part of the housing,
The rear part of the housing is provided with recesses that open upward and rearward as a battery mounting part for detachably mounting a lithium ion battery for an electric tool that supplies power to the electric blower,
The lithium ion battery for the electric tool has a front surface, a rear surface, an upper surface, a lower surface, and left and right side surfaces when mounted on the battery mounting portion, and a pair of left and right protrusions provided on the left and right side surfaces and extending in the vertical direction. And a positive and negative electrode provided on the front surface and extending in the vertical direction, and a lock mechanism provided on the front surface, and the rear surface, the lower surface, and the upper surface are mounted on the battery mounting portion. It is configured to be exposed from the body so that the operator can grasp it with fingers,
The lock mechanism includes a lock member in which a button and a locking projection are integrated, and a resilient member that elastically biases the locking projection so as to protrude from the front surface to the outside. ,
The concave portion has a back wall, a bottom wall, and left and right side walls, and is formed on the left and right side walls so as to be slidable in a vertical direction so as to be detachable from the pair of left and right convex portions of the lithium ion battery mounted on the battery mounting portion. A pair of left and right engaging portions provided; a positive and negative electrode terminal provided at a lower portion of the back wall and electrically connected to the positive and negative electrodes of the lithium ion battery mounted on the battery mounting portion; A locking recess provided on the wall and engaged with the locking projection of the lithium ion battery mounted on the battery mounting portion;
An operator grasps the lithium ion battery with a finger and slides it downward to attach it to the battery mounting portion, and engages the locking projection with the locking recess to bring the locking mechanism into a locked state. In addition, when the operator presses the button of the lock mechanism with a finger, the locking projection is retracted from the locking recess to release the lock, and the lithium ion battery is grasped and slid upward. Thus, a vacuum cleaner is provided that is configured to be detached from the battery mounting portion .

  The battery can be exchanged for the main body of the vacuum cleaner.

It is an external appearance perspective view of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a front view of the vacuum cleaner main body of the electric vacuum cleaner shown in FIG. It is a rear view of the vacuum cleaner main body of the vacuum cleaner shown in FIG. It is a rear view which shows the state which removed the battery from the cleaner body shown in FIG. It is a top view of the cleaner body shown in FIG. It is AA arrow sectional drawing of FIG. It is a side view of the vacuum cleaner main body of the vacuum cleaner shown in FIG. It is an external appearance perspective view of the dust collection unit with which the cleaner body of Embodiment 1 is equipped. It is a longitudinal cross-sectional view of the dust collection unit shown in FIG. It is explanatory drawing which shows the flow path of the airflow in the cleaner body of Embodiment 1. It is a figure explaining the cross-sectional shape of the recessed part for finger insertion in the cleaner body of Embodiment 2. FIG. It is a figure explaining the opening shape of the recessed part for finger insertion in the cleaner body of Embodiment 3. FIG. It is a figure explaining the opening shape of the recessed part for finger insertion in the cleaner body of Embodiment 4. FIG. It is a figure explaining the state which removes a battery from the cleaner body of Embodiment 5.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. In addition, the following description is an illustration in all the points, Comprising: It should not be interpreted as limiting this invention.

(Embodiment 1)
[Overall description of the vacuum cleaner body]
1 is an external perspective view of a vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a front view of a vacuum cleaner main body of the vacuum cleaner shown in FIG. 1, and FIG. 3 is a vacuum cleaner shown in FIG. It is a rear view of the vacuum cleaner main body of a machine. 4 is a rear view showing a state in which the battery is removed from the electric vacuum cleaner shown in FIG. 3, FIG. 5 is a plan view of the main body of the vacuum cleaner with the battery shown in FIG. 3, and FIG. FIG. 7 is a cross-sectional view taken along line AA in FIG. 5, and FIG. 7 is a side view of the vacuum cleaner main body of the electric vacuum cleaner shown in FIG. 1.

As shown in these drawings, the electric vacuum cleaner 1 includes a cleaner body 100 having wheels and a suction hose portion 300.
The vacuum cleaner main body 100 has an electric blower 106 built in the front part, a cyclone type dust collection unit 500 is detachably built in an intermediate part, and a battery B1 as a power source for supplying electric power to the electric blower 106 is also provided. It is detachably provided at the rear. In addition, the vacuum cleaner 1 of this invention may be equipped with the battery B1 for exclusive use as a component, and the structure corresponding to a specific commercially available battery may be sufficient as it. In the present embodiment, a battery for a power tool is used. This battery for electric tools can be used for a rechargeable driver, a rechargeable circular saw, a rechargeable grinder, a rechargeable hedge trimmer, a rechargeable blower, and the like. The battery for the electric tool has a cell using lithium ions, but may have a cell using nickel cadmium, nickel hydrogen, lithium ion polymer, or the like.

  The suction hose part 300 includes a suction hose 301, an extension pipe 302, a suction port body 303 connected to the tip of the extension pipe 302, a hand handle 304, an operation part 305 attached to the hand handle 304, and a connection part. 306.

The suction hose 301 is detachably connected to the front of the cleaner main body 100 via the connection portion 306, and the user contacts the floor G with the suction port body 303 at the tip of the extension pipe 302 while holding the hand handle 304 by hand. Can be moved.
The suction port body 303 has a suction port on the bottom surface.

As shown in FIGS. 2 and 10, an opening for inserting the connecting portion 306 of the suction hose portion 300 into the front surface side of the cleaner body 100 and connecting it to the lateral relay duct 104 a via packing (not shown). Part 107a, terminal part 107b for connecting a terminal (not shown) of connection part 306 to cleaner body 100, and hand handle 115. The circuit boards K ₁ and K ₂ (see FIG. 6) of the vacuum cleaner main body 100 and the operation unit 305 (see FIG. 1) of the suction hose unit 300 are the terminals and terminal units of the connection unit 306 of the suction hose unit 300. They are connected by wiring via 107b.

  In the vacuum cleaner main body 100, the wheels are a pair of large ring-shaped wheels 140 disposed on the left and right side surfaces, a small roller-shaped front wheel 117 disposed in the lower front portion, and a rear wheel disposed in the lower rear portion. It has a free wheel 118 which is a caster that can rotate and turn. Therefore, when the user moves while holding the hand handle 304 by hand, the cleaner body 100 can follow the operation. In the state where the vacuum cleaner main body 100 is grounded so as to be able to run on the floor G, the front is a direction in which the vacuum cleaner main body 100 is advanced, and the rear is a direction in which the vacuum cleaner main body 100 is moved backward, Is the direction opposite to the floor surface G, the downward direction is the direction on the floor surface G side, and the left-right direction is a direction orthogonal to both sides with respect to the front-rear direction.

  The vacuum cleaner main body 100 is supported by the pair of wheels 140 and the rear wheel 118 in the free state shown in FIG. 7, and in the state pulled forward by the suction hose 301 shown in FIG. 6, the pair of wheels 140 and the front wheel 117. Supported by. That is, the front wheel 117 is lifted from the floor surface G in the free state, and the free wheel 118 is lifted from the floor surface G in the state shown in FIG.

  The vacuum cleaner main body 100 sucks dust on the floor surface G together with air from the suction port body 303 to the dust collecting unit 500 through the extension pipe 302 and the suction hose 301. Ring-shaped wheel bodies 110 are arranged on the left and right sides of the dust collection unit 500.

The user visually checks the dust collection status of the dust collection unit 500 inside the vacuum cleaner main body 100 from the central opening 141 of the ring-shaped wheel main body 110, and pulls out the dust collection unit 500 from the upper part of the vacuum cleaner main body 100 as appropriate. Dust collected in the unit 500 can be discarded.
Further, since the cleaner body 100 includes the hand handle 115, the user can hold the hand handle 115 and lift and transport the cleaner body 100.

The vacuum cleaner main body 100 includes a housing 101 composed of a plurality of members, the dust collecting unit 500 to which a suction hose portion 301 is connected and collects dust by a swirling airflow, and a suction hose portion disposed in front of the dust collection unit 500. An electric blower 106 that sucks air from 301 through the dust collection unit 500, a battery B1 for supplying electric power to the electric blower 106, and circuit boards K ₁ and K ₂ electrically connected to the electric blower 106; Is provided inside the housing 101.

A lower flow path 138 and a rear flow path 139 that guide exhaust from the electric blower 106 to the exhaust port 133 are formed in the lower part and rear part of the dust collection unit 500 in the housing 101 of the cleaner body 100 (FIGS. 6 and 10). reference). Circuit boards K ₁ and K ₂ are arranged in an exhaust passage having a lower passage 138 and a rear passage 139.

  The universal wheel 118 includes a wheel 118 a and a disk-shaped universal frame 118 b that rotatably holds the wheel 118 a, and is pivotally attached to the bottom wall of the housing 101. The bottom wall is formed with a circular recess having a central hole for pivotally attaching the free frame 118b of the free wheel 118 by bolt / nut coupling.

  On the rear wall 109 of the housing 101, a concave battery mounting portion 109a is formed at the left and right intermediate positions, and a finger insertion concave portion 109b is formed in communication with the lower portion of the battery mounting portion 109a. Exhaust ports 133 composed of a plurality of small holes are formed on both the left and right sides of the finger insertion recess 109b.

  The width W2 in the left-right direction of the finger insertion recess 109b is set to be equal to or greater than the width W1 in the left-right direction of the battery mounting portion 109a. In this embodiment, the case where the width W2 in the left-right direction of the concave portion 109b for inserting the finger is set to be the same as the width W1 in the left-right direction of the battery mounting portion 109a is illustrated.

Battery mounting portion 109a is a recess that opens to the formed upper and rear to the left and right middle position by recessing the front of the rear wall 109, a back wall 109a _1, left and right side walls 109a _2, recesses for the fingers inserted And a bottom wall 109a ₃ located at the back of 109b.
In the present embodiment, the width W1 in the left-right direction of the battery mounting portion 109a is set to be approximately the same as the width of the battery B1 mounted on the battery mounting portion 109a, and the vertical length of the battery mounting portion 109a is the length of the battery B1. The case where the depth in the front-rear direction of the battery mounting portion 109a is set to be shallower than the thickness of the battery B1 is illustrated, but the size of the battery mounting portion 109a is not limited to this. .

The back wall 109a ₁ of the battery mounting portion 109a is provided with positive and negative terminals 109t ₁ and 109t _{2 that} are electrically connected to positive and negative electrodes (not shown) of the battery B1 attached to the battery mounting portion 109a. The positive and negative terminals 109t ₁ and 109t ₂ are electrically connected to the drive system circuits of the circuit boards K ₁ and K ₂ . In the present embodiment, a case where positive and negative terminals 109t ₁ and 109t ₂ made of a thin metal plate extending in the vertical direction are provided in the battery mounting portion 109a that is a recess of the housing 101 is illustrated.

In addition, a lock member Bb in which the button Bb ₁ and the locking projection Bb ₂ are integrated, and the lock member Bb outward are provided on the upper surface of the battery B1 where the positive and negative electrodes (not shown) are provided. A lock mechanism including a resilient member (not shown) that resiliently biases is provided. On the other hand, a locking recess 109a ₄ that engages with the locking protrusion Bb ₂ of the battery B1 mounted on the battery mounting portion 109a is provided on the upper portion of the back wall 109a ₁ of the battery mounting portion 109a. The locked state of the lock mechanism locking portion Bb ₂ in the engagement recess 109a ₄ is engaged, locks by retracting the locking protrusion Bb ₂ by pressing a button Bb ₁ rearward from the locking recess 109a ₄ Can be canceled.

Further, the left and right side walls 109a ₂ in the battery mounting portion 109a has a groove-like engagement portion 109a ₂₁ extending in the vertical direction is provided, whereas, the convex portion is provided on the right and left sides of the battery B1. When installing the battery B1 as inserted from above into the battery mounting portion 109a, the projecting portions of the left and right sides of the battery B1 is fitted while sliding from above the engaging portion 109a ₂₁ of the left and right side walls 109a ₂ of the battery mounting portion 109a. Thus, the dropping of the battery mounting portion 109a of the battery B1 is prevented, protrusion battery B1 is supported by contacting the lower end of the engaging portion 109a _21. In the present embodiment, the case where the locking recess 109a ₄ and the engagement portion 109a ₂₁ are provided in the battery mounting portion 109a that is a recess of the housing 101 is illustrated.

At this time, battery B1 may be supported by the lower end Ba of the battery B1 is brought into contact with the bottom wall 109a ₃ of the battery mounting portion 109a. That is, the bottom wall 109a ₃ of the battery mounting portion 109a may be provided in the back of the finger insertion recess 109b as a step portion 109a _{3 that} can come into contact with the lower end Ba of the battery B1 mounted on the battery mounting portion 109a.

When the battery B1 is taken out from the battery mounting portion 109a for charging with the charger, the battery B1 is pulled up and taken out from the battery mounting portion 109a while releasing the lock mechanism. In this case, for example, as shown in FIG. 7, the user may support the lower end Ba of the battery B1 insert the thumb F1 of the hand on the finger insertion recess 109b, and pressing the button Bb ₁ of the lock mechanism in the middle finger and the index finger F2 However, the battery B1 can be pulled up.

Alternatively, a plurality of the index finger F2 to the little finger support lower Ba battery B1 is inserted into the finger insertion recess 109b, and it is possible to raise the battery B1 while pressing the button Bb ₁ of the locking mechanism with the thumb F1 (FIG. 14 reference). In this case, since the width W2 of the finger insertion concave portion 109b is the same as the width W1 of the finger insertion concave portion 109b, the width W2 of the finger insertion concave portion 109b is secured to be wide enough to insert a plurality of fingers. Yes.

  As described above, the electric vacuum cleaner of the present embodiment can attach the battery B1 to the casing 101 by moving it from above to below and remove the battery B1 by moving it from below to above. It is configured to be able to. Furthermore, the vacuum cleaner of this embodiment can push up the lower part of battery B1 with which the housing | casing 101 was mounted | worn by denting the part facing the lower part of battery B1 in the housing | casing 101. It is configured as follows.

Although it is also possible to increase the battery B1 grabbing left and right sides in other fingers while holding the button Bb ₁ with the index finger, and weight of the battery B1, the resistance when pulling up the battery B1 from the battery mounting portion 109a applied to the hand Therefore, the battery B1 can be removed more easily for the user having a weak grip strength or arm strength by supporting the lower end Ba of the battery B1 with a finger.

  When removing the battery, the battery B1 is taken out from the battery mounting portion 109a with the operation switch provided in the operation unit 305 turned off. In addition, a power switch is provided in the cleaner body 100, and the battery is turned off with the power switch turned off. You may make it take out B1 from the battery mounting part 109a. The battery B1 removed from the battery mounting portion 109a is charged by being set in a charger connected to a commercial power source.

An LED cover 108 is provided on the upper end side of the rear wall 109, and an LED substrate L is provided inside the LED cover 108. The LED board L includes, for example, a battery exhaust lamp L ₁ and a filter maintenance lamp L ₂ (see FIG. 5). The LED cover 108 has a translucent portion that transmits the light of these lamps L ₁ and L ₂ .

Battery Broken lamp L ₁ is the storage battery B1 displays the remaining battery level that supplies using LED vary emission colors. In one example, when the battery voltage after full charge is reduced, the remaining capacity of the storage battery B1 decreases and the battery voltage drops to inform the user when charging is necessary, and flashes red, and the remaining capacity of the storage battery B1 disappears. And lights up in red for about 10 seconds to inform the user. Filter Care lamp L ₂ is lit orange when there that care of the filter is needed is information to the user. In a state in which the filter clean lamp L ₂ is dirty adhering dirt or dust on the filter, it lights up orange when you need to clean the filter. Furthermore, when the filter needs to be cleaned when the filter is clogged with dust adhering to the filter, it quickly blinks orange to notify the user.

[Description of dust collection unit]
8 is an external perspective view of the dust collection unit provided in the cleaner body of Embodiment 1, and FIG. 9 is a longitudinal sectional view of the dust collection unit shown in FIG.
The dust collection unit 500 includes a cup cover unit 570, a filter unit 550, an inner cylinder unit 530, and a bottomed cylindrical dust cup 501.

  The dust cup 501 is formed of a transparent or translucent resin so that the dust collection state is visible from the outside. As shown in FIG. 8, an inflow port 503 into which an air flow from the suction hose unit 300 (see FIG. 1) flows is provided on the front peripheral surface of the dust cup 501.

  Referring to FIGS. 1, 2, and 6, the connection portion 306 of the suction hose portion 300 is connected to the vacuum cleaner main body 100 so that air flows straight into the inner circumferential surface of the cylindrical dust cup 501 from the tangential direction. Bent with a deviation from the center.

  Referring to FIG. 9, the inner cylinder unit 530 includes an upper cup cover 537 that houses the filter unit 550, a lower dust partition 535, and an inner cylinder 533 that connects between them. An opening is formed at the bottom of the cup cover 537 to which the inner cylinder 533 is connected. A slit-like outlet 533b is formed around the inner cylinder 533, and a mesh-like filter (not shown) is disposed at the outlet 533b. The dust partition 535 includes a flange portion 535 a having an outer diameter larger than that of the inner tube 533, a large-diameter tube portion 535 b surrounding the outer periphery of the flange portion, and a small-diameter tube portion 535 c whose lower end is in contact with the bottom center portion of the dust cup 501.

  When the electric blower 106 is activated, the air flow flows straight into the dust cup 501 in the circumferential tangential direction via the connecting portion 306 and the lateral relay duct 104a (see FIG. 10), and forms a high-speed swirling air flow in the dust cup 501. To do.

Thereby, the dust contained in the airflow is centrifuged. Since the dust collecting unit 500 is installed so that the central axis of the swirling airflow to be formed faces the direction of gravity, the heavy dust among the centrifugally separated dust is accumulated below the flange portion 535a by the action of gravity. .
Here, the center axis of the swirling airflow of the dust collection unit 500 being directed in the direction of gravity does not require the center axis of the swirling airflow to be directly below, and the dust collection unit 500 is directed to the cleaner body 100 in the vertical direction. It only has to be arranged.

A light thing is filtered with the mesh-like filter arrange | positioned in the outflow port 533b with an air flow. In addition, minute dust rises in the inner cylinder 533 through the outlet 533b and is filtered by the filter unit 550. The filter unit 550 includes a pleated filter in which a peak and a valley are continuous. The filtered air flow is sucked into the electric blower 106 through the outflow duct 571.
The dust collection unit 500 collects dust by centrifugal separation, but is not limited thereto. For example, a paper pack may be used to collect dust.

  As shown in FIG. 7, the vacuum cleaner main body 100 configured in this way is supported by the wheel main body 110 and the universal wheel 118 of the pair of wheels 140 in a free state in which the suction hose 301 is removed, as shown in FIG. 6. In the state pulled forward by the suction hose 301, the pair of wheels 140 are supported by the wheel body 110 and the front wheel 117. That is, the position of the center of gravity of the cleaner body 100 is set so as to be in such a state. In this way, the step-over performance can be enhanced while suppressing the lifting of the front side of the cleaner body 100.

  FIG. 10 is an explanatory diagram illustrating airflow paths in the cleaner body of the first embodiment. As shown in FIGS. 6, 9, and 10, the air flow from the suction hose 301 flows into the dust collection unit 500 through the connection portion 306 and the lateral relay duct 104 a and above the electric blower 106.

  The inflowing air flow becomes a swirl flow in the dust cup 501 of the dust collection unit 500. After the dust collection is centrifuged, the air flow rises in the inner cylinder 533, passes through the filter unit 550, passes through the electric blower 106, and enters the lower flow path 138 below the dust collection unit 500. enter. The swivel axis is slightly tilted rearward with respect to the vertical direction. When viewed from the side as shown in FIG. 10, the flow path flowing into the dust cup 501 from the connection portion 306 is substantially orthogonal to the pivot axis.

The air flow passes through the lower flow path 138 while cooling the circuit boards K ₁ and K _2, and then the air flow flows into the rear flow path 139 and is discharged from the exhaust port 133 to the outside.

(Embodiment 2)
FIG. 11 is a diagram illustrating a cross-sectional shape of the finger insertion recess in the cleaner body of the second embodiment.
In the first embodiment (see FIG. 10), the step 109a ₃ is provided in the back of the finger insertion recess 109b. However, as shown in FIG. 11, the step 109a _{3 in} the back of the finger insertion recess 109b. May be omitted. Further, in the first embodiment (see FIG. 10), the case where the space on the opening side and the back side of the concave portion 109b for inserting the finger is the same is illustrated, but the inner portion of the concave portion 209b for inserting the finger is shown in FIG. The space on the side may be narrower than the space on the opening side. In this way, the dead space at the back of the finger insertion recess 209b can be reduced.

(Embodiment 3)
FIG. 12 is a diagram illustrating the opening shape of the finger insertion recess in the cleaner body of the third embodiment.
In the first embodiment (see FIG. 4), the case where the width W2 of the finger insertion recess 109b in the left-right direction is the same as the width W1 of the battery mounting portion 109a is illustrated. However, as shown in FIG. The width W2 of 309b may be wider than the width W1 of the battery mounting portion 109a. Thus, when pulling up the battery B1 while a plurality of the index finger to the little finger is inserted into the finger insertion recess 309b supporting the lower end Ba of the battery B1, and pressing the button Bb ₁ of the locking mechanism with the thumb, finger Since the insertion recess 309b has a wide width W2, a plurality of fingers can be easily inserted. In the third embodiment as well, the space on the back side of the finger insertion recess 309b may be narrower than the space on the opening side as in the second embodiment.

(Embodiment 4)
FIG. 13 is a diagram illustrating the opening shape of the finger insertion recess in the cleaner body of the fourth embodiment.
In the first embodiment (see FIG. 4), the case where one finger insertion recess 109b is provided is illustrated. However, as shown in FIG. 13, a plurality of finger insertion recesses 409b may be provided. The fourth embodiment exemplifies a case where two finger insertion recesses 409b are provided so that two fingers (for example, an index finger and a middle finger) can be inserted.
In this way, the battery B1 (see FIG. 3) can be supported also by the partition wall 409c between the two finger insertion recesses 409b. In addition, since there are two finger insertion recesses so that two fingers can be inserted, the user can be prompted. In the fourth embodiment as well, as in the second embodiment, the space on the back side of the finger insertion recess 409b may be narrower than the space on the opening side.

(Embodiment 5)
FIG. 14 is a diagram illustrating a state in which the battery is removed from the cleaner body of the fifth embodiment.
Since the battery B2 in the fifth embodiment is thinner than the battery B1 in the first embodiment (see FIG. 7), when the battery B2 is mounted on the battery mounting portion 109a, the left and right side surfaces of the battery B2 are almost hidden by the battery mounting portion 109a. End up. In this case, when taking out the battery B2 from the battery mounting portion 109a for charging with the charger, it is difficult to grasp the exposed portions of the left and right side surfaces of the battery B with fingers, and the battery B2 can be easily lifted from the battery mounting portion 109a. It cannot be taken out.

In this case, as shown in FIG. 14, for example, a user, by pushing up the battery B2 by inserting the forefinger F2 and the middle finger F3 in the finger insertion recess 509b while pressing the button Bb ₁ of the locking mechanism with the thumb F1, The battery B2 can be easily taken out from the battery mounting portion 109a. Alternatively, the thumb F1 support lower Ba battery B1 is inserted into the finger insertion recess 109b, and it is possible to raise the battery B1 easily while pressing the button Bb ₁ of the locking mechanism with the index finger F2 and the middle finger F3 (see FIG. 7 ).

  In the case of the fifth embodiment, a step (see FIG. 10) is not provided at the back of the finger insertion recess 509b so that it can be supported by the finger to the back of the lower end Ba of the battery B2. Note that the finger insertion recess 509b according to the fifth embodiment may be configured as described in the second to fourth embodiments.

(Summary)
The electric vacuum cleaner of the present invention includes an electric blower, a housing that houses the electric blower, and wheels that are supported by the housing.
A suction hose part is connected to the front part of the housing,
The casing is provided with a battery mounting portion for mounting a battery for an electric tool that supplies electric power to the electric blower.
The electric vacuum cleaner of the present invention may be configured as follows.

(1) In the embodiment of the present invention, the battery attached to and detached from the housing of the electric vacuum cleaner is a battery for an electric tool, but it is not necessarily a battery for an electric tool. For example, a battery for so-called home appliances such as a camera may be used.
(2) Some types of batteries for electric tools include a plug-in type in which a part is configured to have a small diameter and the small diameter portion is inserted into a recess of the electric tool. Also in the embodiment of the present invention, a recess can be formed in the housing of the electric vacuum cleaner, and a small diameter portion of the battery for the electric tool can be inserted.
(3) In the embodiment of the present invention, a battery is connected to the rear part of the housing of the vacuum cleaner. However, the arrangement of the battery is arbitrary. For example, a battery can be connected to the upper or lower portion of the housing, a battery can be connected to the front of the housing, or a side portion of the housing can be connected. That is, the battery mounting portion is disposed between virtual planes composed of a pair of left and right wheels (a space between the pair of left and right wheels in the housing).
(4) In the embodiment of the present invention, the battery can be attached to and detached from the casing by sliding it at least in the vertical direction with respect to the casing of the vacuum cleaner. However, the direction of this sliding is arbitrary. is there. For example, the battery can be attached to and detached from the housing by sliding at least in the front-rear direction or at least in the left-right direction. In this case, the engaging part for sliding the battery provided in the battery mounting part and the terminal capable of contacting the battery terminal can be formed in a shape extending in the direction of sliding the battery.
(5) The lateral width of the finger insertion recess may be set to be the same as the lateral width of the battery mounting portion.
If it does in this way, it can support in any position of the lower end of a battery with the finger inserted in the crevice for finger insertion.

(6) A step portion that can come into contact with the lower end of the battery mounted on the battery mounting portion may be provided in the back of the finger insertion recess.
If it does in this way, a battery can be supported in a step part because the lower end of a battery with which a battery mounting part was attached contacts a step part.

  The disclosed embodiments should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 100 Vacuum cleaner main body 101 Case 106 Electric blower 109a Battery mounting part 109b, 209b, 309b, 409b, 509b Recess for finger insertion 409c Partition wall B Battery W1, W2 Width

Claims (4)

An electric blower, a housing for housing the electric blower, and wheels supported by the housing,
A suction hose part is connected to the front part of the housing,
The rear part of the housing is provided with recesses that open upward and rearward as a battery mounting part for detachably mounting a lithium ion battery for an electric tool that supplies power to the electric blower,
The lithium ion battery for the electric tool has a front surface, a rear surface, an upper surface, a lower surface, and left and right side surfaces when mounted on the battery mounting portion, and a pair of left and right protrusions provided on the left and right side surfaces and extending in the vertical direction. And a positive and negative electrode provided on the front surface and extending in the vertical direction, and a lock mechanism provided on the front surface, and the rear surface, the lower surface, and the upper surface are mounted on the battery mounting portion. It is configured to be exposed from the body so that the operator can grasp it with fingers,
The lock mechanism includes a lock member in which a button and a locking projection are integrated, and a resilient member that elastically biases the locking projection so as to protrude from the front surface to the outside. ,
The concave portion has a back wall, a bottom wall, and left and right side walls, and is formed on the left and right side walls so as to be slidable in a vertical direction so as to be detachable from the pair of left and right convex portions of the lithium ion battery mounted on the battery mounting portion. A pair of left and right engaging portions provided; a positive and negative electrode terminal provided at a lower portion of the back wall and electrically connected to the positive and negative electrodes of the lithium ion battery mounted on the battery mounting portion; A locking recess provided on the wall and engaged with the locking projection of the lithium ion battery mounted on the battery mounting portion;
An operator grasps the lithium ion battery with a finger and slides it downward to attach it to the battery mounting portion, and engages the locking projection with the locking recess to bring the locking mechanism into a locked state. In addition, when the operator presses the button of the lock mechanism with a finger, the locking projection is retracted from the locking recess to release the lock, and the lithium ion battery is grasped and slid upward. The vacuum cleaner is configured to be detached from the battery mounting portion .   The vacuum cleaner according to claim 1, wherein exhaust holes are formed on the left and right sides of the battery mounting portion.   The vacuum cleaner according to claim 1 or 2, wherein a circuit board is disposed in an exhaust passage of the electric blower. The vacuum cleaner according to any one of claims 1 to 3, wherein a battery exhaust lamp or a filter cleaning lamp is disposed at a rear portion of the housing.