JPH1066664A - Vertical type electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical type electric vacuum cleaner capable of preventing attachment defects when a user attaches a dust collecting chamber cover to a prescribed part. SOLUTION: This vertical type electric vacuum cleaner P1 is provided with a vacuum cleaner main body 1 mainly placed at a vertical position and a brush part 2 provided vertically turnably through a clearance 9 on the front part. The vacuum cleaner main body 1 is provided with a dust collecting chamber 4, a motor-driven blower chamber 5, a front upper case 10, an attachable and detachable dust collecting chamber cover 11, a front lower case 12 and a rear case 13. The front upper case 10 is provided with a rib 10a for engagement. The cover 11 is provided with a pawl part 11a elastically engageable to the rib 10a and is provided with a projection part 11b for the engagement. The projection part 11b is composed of one almost rectangularly expanded part 11c and a pair of the ribs 11d in an almost semicircular shape connected to the respective ends and almost orthogonally projected to a rear part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical vacuum cleaner, and more particularly, to a vacuum cleaner body having a dust collecting chamber and an electric blower chamber therein, and a cleaner body below the vacuum cleaner body. And a brush part rotatably supported with respect to the vertical vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, a vertical vacuum cleaner of this type is shown in FIG.
As shown in FIG. 3, the removable dust collecting chamber cover 101 forms a central portion of a front wall of the cleaner main body 100 when the cleaner main body 100 is placed in a vertical position, and covers a dust collecting chamber 110 from the front. A fixed front lower case 102 covering the electric blower chamber 111 from the front, and a fixed front upper case 1 forming an upper part of the front wall.
03 and the dust collecting chamber 110 and the electric blower chamber 1 which constitute the rear wall.
11 is provided with a fixed rear case 104 that covers the rear from the rear.

In front of the front lower case 102, a brush portion 115 having a rotating brush 105 is provided rotatably up and down via a gap 106. The brush part 115 and the dust collecting chamber 110 of the cleaner main body 100 communicate with each other via an intake hose 112 arranged outside. Dust collection chamber 11
At 0, a dust bag (not shown) is detachably attached to the indoor opening 113a of the hose fitting 113.

The electric blower room 111 has a front lower case 102.
And the rear case 104, and both cases 102 and 104
And a partition 114 provided on the dust collection chamber 110 side. The electric blower 107 is housed in the electric blower room 111.

[0005] The flow of air from the intake to the exhaust in the vertical vacuum cleaner constructed as described above is as follows.

That is, the rotating brush 1 of the brush 115
When the electric blower 05 is driven to rotate by a motor (not shown) through a belt (not shown), dust is released from a surface to be cleaned, such as a floor of a room or a carpet, and the air is blown by the negative pressure of the electric blower 107 together with air. It is led to the dust bag of the dust chamber 110 through the hose 112.

[0007] The air guided to the dust bag then exits the dust bag and flows into the electric blower room 111 through a vent provided in the partition 114. The air that has flowed into the electric blower room 111 is, as shown in an enlarged view in FIG.
The exhaust gas is discharged to the outside from an exhaust port 101b provided at a lower portion of the dust collection chamber cover 101 through a ventilation port 102b provided at a front upper portion of the second dust collection chamber 101.

As shown in FIG. 6, in such a vertical vacuum cleaner, when a user attaches the dust collecting chamber cover 101, a plate-like member provided to project downward at the lower edge of the cover 101 is used. After inserting the engaging projection 101a into the engaging recess 102a provided in the lower front case 102, the engaging claw 101b provided on the upper part of the cover 101 is engaged with the corresponding engaging portion 103b of the upper front case 103. Let's do it.

At this time, the user sets the engaging convex portion 101a of the dust collecting chamber cover 101 not to the engaging concave portion 102a of the front lower case 102, but to the front lower case 10 of the cleaner body 100.
Engaging claw 101b of cover 101 while being erroneously inserted into gap 106 provided between brush 2 and brush portion 105.
May be engaged with the corresponding engagement portion 103b of the front upper case 103.

[0010]

When the electric blower 107 of the vacuum cleaner is operated in such a state, as shown in FIG. 7, the engaging projection 101a of the dust collecting chamber cover 101 and the front lower case 102 are separated from each other. A gap 10 between the engaging recess 102a
8, the outside air is sucked into the inside of the cleaner main body 100 from the gap 108, so that the suction characteristics may be deteriorated.

The dust collecting chamber cover 101 and the rear case 10
4, the air blown out from the electric blower 107 passes through the vent 102b of the front lower case 102 and is exhausted from the dust collection chamber cover 101 as shown by the arrow. In addition to being discharged from the opening 101b to the outside, the dust also flows into the dust collecting chamber 110 through the joint gap 109.

The air thus flowing into the dust collecting chamber 110 passes through the dust collecting bag arranged in the dust collecting chamber 110, enters the electric blower chamber 111, and returns to the ventilation port 10 of the front lower case 102.
The dust flows into the dust collecting chamber 110 from the gap 2b and the joint gap 109. As a result of such air circulation, the electric blower room 111
Temperature rises, the front lower case 102 and the rear case 104
In addition, there is a possibility that the dust collection chamber cover 101 and the like may be disadvantageously thermally deformed or destroyed by heat.

The present invention has been made in view of such circumstances, and a main problem thereof is to prevent a user from mounting a dust collecting chamber cover at a predetermined location and prevent the user from mounting the dust collecting chamber cover at a predetermined location. It is an object of the present invention to provide a vertical vacuum cleaner that can prevent inconvenience such as thermal deformation caused by it.

[0014]

According to the present invention, there is provided a cleaner main body having a dust collecting chamber and an electric blower chamber therein, and a pivotally rotatable lower part of the cleaner main body relative to the cleaner main body. A dust collecting chamber cover for opening and closing the dust collecting chamber so that the dust collecting chamber can be opened and closed. The dust collecting chamber cover is provided with an engaging projection for engaging with an engaging concave section formed at a lower portion of the cleaner main body. And an engaging claw that releasably engages with the upper portion of the cleaner body, and the engaging protrusion is inserted into the gap between the cleaner body and the brush portion. And a blocking portion for preventing the engagement claw portion from being engaged with the upper portion of the cleaner body is provided.

In this specification, "front" refers to the direction in which the brush portion is provided in the vertical vacuum cleaner, and "rear" refers to the direction in which the cleaner body is provided, and "left" or "right". "" Means the left or right direction when viewing the main body of the cleaner from the "rear", and "up" or "bottom" means the upper or lower direction when the main body is placed in the vertical position, respectively. Say.

[0016] A vertical vacuum cleaner according to the present invention comprises a cleaner body and a brush unit. The main body of the vacuum cleaner is mainly placed in a vertical position, and usually, a dust collection chamber is provided in an upper part or an inner center, and an electric blower room is provided in a lower part. An electric blower is arranged in the electric blower room. The brush unit has a built-in rotating brush, and is provided at the lower front of the cleaner body so as to be vertically rotatable via a gap.

The cleaner body includes, for example, a fixed front upper case, a detachable dust collection chamber cover, a fixed front lower case, and a fixed rear case. The upper front case forms an upper part of the front wall when the cleaner body is placed in a vertical position. The dust collection chamber cover also forms a central portion of the front wall and covers the dust collection chamber from the front. The lower front case also forms the lower part of the front wall and covers the electric blower room from the front. After the case,
A rear wall is configured to cover the dust collection room and the electric blower room from behind.

The dust collection chamber cover has an engaging claw on the top. The claw portion is provided, for example, as one or a plurality of L-shaped cross-sections, which are connected to the upper edge of the cover and protrude inward. This claw part can be released to the corresponding number of engaging ribs provided on the lower wall of the front upper case and the like, and the corresponding number of engaging grooves provided on the lower wall of the front upper case and the like. Can be engaged.

The dust collection chamber cover has a projection for engagement at a lower portion thereof. The engaging protrusion is formed with a blocking portion for preventing the engagement claw from engaging with the upper portion of the cleaner body in a state where the engaging protrusion is inserted into a gap between the cleaner body and the brush portion. ing.

Here, for example, there are the following two modes for preventing the engaging claw portion from engaging with the upper portion of the cleaner main body in a state where the engaging convex portion is inserted into the gap. . One of them is to make the linear distance from the lowermost edge of the dust collecting chamber cover to the lowermost edge of the front wall of the front upper case shorter than that of the conventional case when the engaging projection of the dust collecting chamber cover enters the gap. This makes it impossible to push the claw portion of the cover to the corresponding engagement portion. The other is to make the linear distance from the lowermost edge of the dust collecting chamber cover to the corresponding engaging position of the claw portion in the front upper case when the engaging convex portion of the dust collecting chamber cover enters the gap as compared with the conventional one. Also, by increasing the length of the cover, an extra distance is generated between the claw portion of the cover and the corresponding engagement portion.

Since such a blocking portion is provided on the engaging projection of the dust collection chamber cover, the engagement projection is mistakenly inserted into the gap when the dust collection chamber cover is attached. I understand. Therefore, by fitting the engaging projections to the recesses, which are correct engagement portions, it is possible to prevent the dust collection chamber cover from being improperly attached.

As the engaging projection of the dust collection chamber cover, for example, a substantially rectangular plate-like projection extending downward along the lower edge of the dust collection chamber cover, and each end of the projection is provided. And a substantially semicircular plate-like rib which constitutes a blocking portion projecting rearward in a substantially orthogonal shape. Further, as a modified example of the blocking portion, there is a member formed of a raised rib provided in a state of being raised rearward so as to be connected to the lower edge of the dust collection chamber cover.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Two embodiments of the present invention will be described below in detail with reference to the drawings. The present invention is not limited by these.

[0024] Figure 1 shows an external configuration viewed vertical electric vacuum cleaner P ₁ according to the first embodiment of the present invention from diagonally above. FIG.
Shows an internal structure as viewed from the left side surface by cutting a state in which mounting of the dust chamber cover in the electric vacuum cleaner P ₁ becomes impossible. Figure 3 shows the internal structure seen from the left side by notching a state in which mounting of the dust chamber cover in the electric vacuum cleaner P ₁ is correctly performed. FIG. 4 shows the lower part of FIG. 3 in an enlarged manner. Figure 5 shows the internal structure seen from the left side by notching state became impossible mounting of the dust collecting chamber cover in a vertical electric vacuum cleaner P ₂ according to the second embodiment of the present invention.

Embodiment 1 As shown in FIGS. 1 and 2, a vertical vacuum cleaner P _{1 according} to Embodiment 1 of the present invention comprises a cleaner body 1, a brush portion 2, and an intake hose 3. Be prepared. This vacuum cleaner body 1
It is mainly placed in a vertical position, and a dust collection chamber 4 is provided in the center of the inside, and an electric blower room 5 is provided below the inside.

In the dust collecting chamber 4, a dust collecting bag (not shown) is detachably attached to the indoor opening 6 a of the hose fitting 6. An electric blower 7 is arranged in the electric blower room 5. The motor shaft 7a of the electric blower 7 extends substantially horizontally in the left-right direction.

The brush section 2 has a rotating brush 8 built therein. The rotating brush 8 is arranged so that its shaft 8a extends substantially horizontally in the left-right direction, and is electrically driven via a rubber belt (not shown) stretched between the shaft 8a and the motor shaft 7a of the electric blower 7. The rotation is driven by the blower 7.

The brush unit 2 is provided in front of the cleaner body 1 via a gap 9 so as to be vertically rotatable. Brush part 2
Stand When storing upright vacuum cleaner P ₁ - but when taking the pivot uppermost position, the cleaner body 1 is a vertical position where the perpendicular to the surface to be cleaned such as a floor surface or carpet surface of the room The storage position can be taken. When the brush unit 2 is at the lowest rotation position, the cleaner body 1 is in a horizontal position substantially parallel to the surface to be cleaned-a special cleaning position for cleaning a special place such as a bed or under a shelf. -Can be taken. When the brush unit 2 takes an arbitrary position between the uppermost rotation position and the lowermost rotation position, the cleaner main body 1 is positioned at a vertical position inclined with respect to the surface to be cleaned—an obstacle such as the center of the room. A normal cleaning position for cleaning a normal place without the space can be taken. The space 9 is narrowest when the cleaner body 1 is in the stand storage position, and is widest when the cleaner body 1 is in the special cleaning position.

The main body of the cleaner is a fixed front upper case 10.
And a removable dust collection chamber cover 11, a fixed lower front case 12, and a fixed rear case 13. The upper front case 10 forms the upper part of the front wall when the cleaner main body 1 is placed in the vertical position. The dust collection chamber cover 11 also forms a central portion of the front wall, and covers the dust collection chamber 4 from the front. The lower front case 12 also constitutes a lower front wall and covers the electric blower room 5 from the front. The rear case 13 constitutes a rear wall and forms the dust collection chamber 4.
And cover the electric blower room 5 from behind. A pair of left and right moving casters 14 are attached to the lower rear of the rear case 13.

The front upper case 10 includes a front wall part that forms the upper part of the front wall of the cleaner body 1, and a lower wall part that is connected to the lower edge of the front wall part at an obtuse angle. One engaging rib 10a is provided in a downwardly protruding shape at a position near the center rear portion of the lower wall portion.

One operation unit 11e is provided at the upper center of the dust collection chamber cover 11. The operation part 11e is a part for a user to insert a fingertip and push or pull the fingertip for the attachment / detachment operation of the cover 11.

The dust collection chamber cover 11 is located at the back of the operation unit 11e.
It has two engaging claws 11a. This claw 11a
Has an L-shaped cross section, which is provided in a state of being connected to the center of the rear edge of the operation portion 11e and protruding rearward, and having a tip bent upward in a hook shape. The claw portion 11a can be resiliently engaged with the rib 10a of the front upper case 10 at its tip.

The dust collecting chamber cover 11 has one engaging projection 11b at the lower center. The protruding portion 11b has a substantially rectangular plate-like protruding portion 11c that protrudes downward along the center of the lower edge of the cover 11, and extends rearward in a substantially orthogonal shape by being connected to each end of the protruding portion 11c. And a pair of substantially semicircular plate-like ribs 11d as blocking portions.

As shown in FIG. 2, the maximum front-rear width of the protrusion 11b, that is, the thickness of the overhang portion 11c + the maximum front-rear width of the rib 11d is determined when the gap 9 becomes narrowest. It is dimensioned to be larger than the distance between the center part 2a of the rear wall of the brush part 2 and the upper part 12a of the front wall of the front lower case 12 when the storage position is taken. In other words, the maximum front-rear width of the convex portion 11b of the cover 11 is such that when the gap 9 becomes the narrowest, the substantially lower half of the convex portion 11b not including the maximum front-rear width portion of the rib 11d is formed by the rear wall central portion 2a. And the upper front wall 1
Although it can enter the upper part of the gap 9 sandwiched by the ribs 2a, the convex portion 1 including the maximum front and rear width portion of the rib 11d is included.
The dimensions are such that the substantially upper half of 1b cannot enter the gap 9.

When the upper half of the projection 11 b of the dust collection chamber cover 11 cannot enter the gap 9, the tip of the engaging claw 11 a of the cover 11 is attached to the front wall of the front upper case 10. Since it is in contact with the lower edge, the upper part of the cover 11 cannot be pushed further into the upper case 10.

In the upper rear portion of the upper front wall 12a of the lower front case 12, there is provided one engaging concave portion 12b into which the convex portion 11b of the dust collecting chamber cover 11 can be loosely fitted and engaged. .

Since the dust collection chamber cover 11 and the lower front case 12 are configured as described above, the user
As shown in FIG. 2, when the cover 11 is attached at the stand storage position, the engaging claw 11a is engaged with the front upper case 10 while the convex portion 11b of the cover 11 is erroneously inserted into the gap 9. Even if the cover 11 is engaged with the rib 10a, the cover 11 cannot be pushed further into the upper case 10. Thereby, the user can use the cover 1
Understand that 1 was incorrectly installed.

Then, as shown in FIG. 3, the user engages the projection 11b of the cover 11 with the recess 12b of the front lower case 12, which is a correct engagement portion, and then moves the claw 11a to the front upper case 10. Can be engaged with the rib 10a.

[0039] Activating the electric blower 7 of the electric vacuum cleaner P ₁ in a state in which thus properly attach the dust chamber cover 11, as shown in FIG. 4, the lower case 12 before the convex portion 11b of the cover 11 The airtight engagement with the concave portion 12b prevents the outside air from being sucked into the inside of the cleaner main body 1 from these engagement portions, and a predetermined suction characteristic can be secured.

Further, since there is no gap between the cover 11 and the rear case 13 as in the prior art, the air blown out from the electric blower 7 is blown forward as shown by the arrow in FIG. The air is discharged to the outside only from the exhaust port 11f of the cover 11 through the vent 12c of the lower case 12.

[0041] In the this vertical electric vacuum cleaner P _1, by engaging protrusion 11b configured as described above in the dust collecting chamber cover 11 is provided, when the user attaches the same cover 11 It can be seen that the projection 11b was mistakenly inserted into the gap 9. Accordingly, the user can prevent the mounting failure of the cover 11 by engaging the convex portion 11b with the engaging concave portion 12b of the front lower case 12, which is a correct engagement portion, and can prevent the heat caused by the mounting failure. Inconveniences such as deformation can be prevented beforehand.

Second Embodiment As shown in FIG. 5, a dust collection chamber cover 21 of a vertical vacuum cleaner P2 according to a _second embodiment of the present invention has a central portion at a lower portion thereof as a blocking portion of an engaging projection. It has one raised rib 21b. The raised rib 21b is attached to the dust collection chamber cover 21.
And is provided in a state of being raised rearward so as to be continuous with the center of the lower edge, and has a substantially arc-shaped cross-sectional shape. This vacuum cleaner P
Configurations of other parts in ₂ are the same as those of the vacuum cleaner P1 according to the _first embodiment.

The maximum front-rear width of the raised rib 21b is determined when the gap 9 becomes narrowest-when the cleaner body 1 is in the stand storage position-in the center of the rear wall 2a of the brush part 2 and in front of the front lower case 12. The rear wall center portion 2a, which is larger than the distance between the upper wall portion 12a and the protrusion ribs 21b can enter the gap 9 sandwiched between the rear wall upper portion 2b and the front wall upper portion 12a.
It is so dimensioned that it cannot enter the gap 9 sandwiched between the front wall 12a and the front wall upper part 12a.

The raised rib 21 of the dust collection chamber cover 21
b is a gap 9 sandwiched between the rear wall upper part 2b and the front wall upper part 12a.
In a state in which it is possible to enter the gap 9 sandwiched between the rear wall central portion 2a and the front wall upper portion 12a, the front upper case 10
Is longer than the conventional one. As a result, an extra distance is generated between the claw portion 11a of the cover 21 and the rib 10a, so that the claw portion 11a and the rib 10a cannot be engaged.

[0045] In the this vertical electric vacuum cleaner P _2, by raised ribs 21b as blocking portion in the engaging protrusion of the like configuration the dust collecting chamber cover 21 is provided, the user It can be seen that when the cover 21 was attached, the raised rib 21b was mistakenly placed at the top of the gap 9. Therefore, the user can prevent the mounting failure of the cover 21 by engaging the raised rib 21b with the engaging concave portion 12b of the front lower case 12, which is the correct engaging portion, and can prevent the heat caused by the mounting failure. Inconveniences such as deformation can be prevented beforehand.

[0046]

According to the vertical vacuum cleaner of the first aspect of the present invention, the dust collecting chamber cover that opens and closes the dust collecting chamber of the vacuum cleaner main body so as to be openable and closable is provided at the lower portion of the vacuum cleaner main body. An engaging protrusion engaging with the joint recess and an engaging claw releasably engaging with the upper portion of the cleaner body are formed, and the engaging protrusion is provided in a gap between the cleaner body and the brush portion. A blocking portion is formed to prevent the engaging claw from being engaged with the upper portion of the cleaner body in a state where the engaging protrusion is inserted, so that the protrusion is erroneously inserted into the gap when the dust collection chamber cover is attached. You can see that it has been inserted. Therefore, by newly engaging the convex portion with the concave portion, which is a correct engaging portion, it is possible to prevent the mounting failure of the dust collection chamber cover and to prevent problems such as thermal deformation due to the mounting failure. it can.

According to the vertical vacuum cleaner of the second aspect of the present invention, the engaging projection has a substantially rectangular plate-shaped projection extending downward along the lower edge of the dust collection chamber cover. 2. A substantially semicircular plate-like rib which is connected to each end of the projecting portion and constitutes a blocking portion projecting substantially orthogonally rearward.
The effect provided by the vertical vacuum cleaner described above can be reliably ensured by the engagement convex portion having a simple configuration including the plate-shaped protrusion and the plate-shaped rib.

According to the vertical vacuum cleaner of the third aspect of the present invention, the blocking portion is formed by the raised rib provided in a state of being raised rearward in a state of being connected to the lower edge of the dust collection chamber cover. According to the first aspect of the present invention, the effect provided by the vertical vacuum cleaner can be reliably ensured by the blocking portion having the simple structure including the raised rib.

[Brief description of the drawings]

FIG. 1 is an external configuration explanatory diagram of a vertical vacuum cleaner according to Embodiment 1 of the present invention as viewed obliquely from above.

FIG. 2 is an explanatory view of an internal configuration of the vertical vacuum cleaner of FIG. 1 in which a state where a dust collection chamber cover cannot be attached is cut away and viewed from a left side surface.

FIG. 3 is an explanatory view showing an internal configuration of the vertical vacuum cleaner of FIG. 1 in a state where a dust collection chamber cover is correctly attached and viewed from a left side surface with a cutout;

FIG. 4 is a configuration explanatory view showing an enlarged lower portion of FIG. 3;

FIG. 5 is a vertical vacuum cleaner P according to Embodiment 2 of the present invention.
₂ cut away state mounting becomes impossible dust collection chamber cover in an internal configuration diagram viewed from the left side.

FIG. 6 is an explanatory view of the internal configuration of a conventional vertical vacuum cleaner in which a state where a dust collection chamber cover is not properly attached is cut away and viewed from a left side surface.

FIG. 7 is a configuration explanatory view showing a lower portion of FIG. 6 in an enlarged manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Brush part 4 Dust collection room 5 Electric blower room 7 Electric blower 8 Rotating brush 9 Gap 10 Front upper case 10a Engagement rib 11 Dust collection room cover 11a Engagement claw part 11b Engagement convex part 11c Plate tension Projection portion 11d Plate-shaped rib (blocking portion) 12 Front lower case 12b Engagement recess 13 Rear case 21 Dust collection chamber cover 21b Raised rib (blocking portion)

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Shuzo Ueyama 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Shuichi Higuchi 2-5-1, Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Kazuhiro Fujii 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[Claims] A vacuum cleaner body having a dust collection chamber and an electric blower chamber therein; and a brush portion rotatably supported by the vacuum cleaner body below the vacuum cleaner body. A dust collection chamber cover that closes the dust chamber so that it can be opened and closed is provided. The dust collection chamber cover has an engagement projection that engages with an engagement recess formed at the bottom of the cleaner body, and can be released at the top of the cleaner body. And an engaging claw portion for engaging the engaging claw portion with the engaging claw portion inserted into a gap between the cleaner body and the brush portion. A vertical vacuum cleaner having a blocking portion for preventing engagement with the vacuum cleaner. 2. A substantially rectangular plate-like projection extending downward along the lower edge of the dust-collecting chamber cover, and an engaging projection is connected to each end of the projection and substantially rearward in a substantially orthogonal manner. 2. A substantially semicircular plate-like rib constituting an overhanging blocking portion.
The vertical vacuum cleaner as described. 3. The vertical vacuum cleaner according to claim 1, wherein the blocking portion comprises a raised rib provided in a state of being raised rearward in a state of being connected to a lower edge of the dust collection chamber cover.