JP2003038404A - Electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner capable of preventing damage of a dust collecting cover and a handle even in the case of opening the dust collecting cover in a state where the handle disposed close to the dust collecting cover is kept pulled up. SOLUTION: In this electric vacuum cleaner, the dust collecting cover 21 opening and closing an opening of a dust collecting chamber and a vertically movable handle 11 used in carrying the cleaner body 1 are provided on the top surface side of the cleaner body 1. The cleaner is provided with a safety mechanism for downward moving the pulled-up handle 11, interlocking with opening of the dust collecting cover 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a dust collecting lid for opening and closing an opening of a dust collecting chamber on the upper surface side of a cleaner body, and a vertically movable handle used when carrying the cleaner body. The present invention relates to an electric vacuum cleaner, and more particularly to a technique suitable for being applied to an electric vacuum cleaner having a grip portion facing forward and backward.

[0002]

2. Description of the Related Art In a general floor-moving type electric vacuum cleaner, a dust collecting chamber containing a dust bag such as a paper pack is arranged on the front side of a cleaner body, and a heavy electric blower is arranged on the rear side. An electric blower room with a built-in power supply and a cord reel room with a built-in cord reel for winding a power cord are arranged.

Therefore, a dust collecting lid for opening and closing the opening of the dust collecting chamber is provided on the front side of the upper surface of the cleaner main body, and a front and rear tilting type or a vertically movable type used when carrying the cleaner main body on the rear side thereof. A formula handle is provided.

[0004]

However, in the case of a vertically movable handle, especially in the case where the handle grip is attached in the front-rear direction (vertical handle), the rear end of the dust collecting lid and the front end of the handle are close to each other. Therefore, it is necessary to lower the handle when opening the dust collecting lid.

That is, when the handle is pulled up, it interferes with the dust collecting lid, and if the dust collecting lid is forcibly opened as it is, the dust collecting lid, the handle and the like will be damaged. In addition, even if the structure is such that when you release your hand from the handle, the vacuum cleaner handles dust even if it is lowered by its own weight. It may disappear, and the above-mentioned inconvenience may occur.

If the handle and the dust-collecting lid are arranged so as to be separated from each other so as not to hit each other,
This causes the problem that the vacuum cleaner body becomes too large.

Therefore, the present invention has been made in order to solve such a problem, and even if the dust collecting lid is opened in a state where the handle arranged in the vicinity of the dust collecting lid is pulled up. An object of the present invention is to provide an electric vacuum cleaner that can prevent damage to the dust collecting lid, the handle, and the like.

[0008]

In order to achieve the above object, the present invention has a dust collecting lid for opening and closing an opening of a dust collecting chamber on the upper surface side of a cleaner body, and carrying the cleaner body. And a vertically movable handle that is sometimes used, and a safety mechanism that moves the handle in the pulled-up state downwards in conjunction with the opening of the dust collecting lid.

Further, the handle is arranged such that a grip portion thereof faces the front-back direction of the cleaner body.

Further, the handle is characterized in that the arm portions at both ends thereof are vertically movable.

The safety mechanism is formed on the rear end side of the dust collecting lid and on the front end side of the handle, and when the dust collecting lid is opened, the protrusion hits and pushes down the handle. And an inclined surface inclined in the direction.

Further, a vertical groove is formed on the front end side of the handle, the bottom surface thereof is the inclined surface, and the protrusion on the rear end side of the dust collecting lid serves as the handle when the dust collecting lid is opened. It is characterized in that a vertical rib is formed which is inserted into the groove on the side and contacts the inclined surface on the bottom surface side.

The handle-side inclined surface is formed by inclining a front bottom surface of a decorative groove formed on the upper surface side of the handle downward.

On the other hand, the rib on the dust collecting lid side is formed at the rear end of the cover which is attached so as to face the upper surface of the dust collecting lid and covers an indicator for indicating the amount of dust collected in the dust collecting chamber. It is what

Further, the inclined surface on the handle side is formed so as to form an arc shape curved outward.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment in which the present invention is applied to an exhaust gas recirculation type vacuum cleaner will be described in detail below with reference to FIGS.

The vacuum cleaner body 1 according to the present embodiment includes a lower case 2
In the main body case 4 composed of the upper case 3 and the upper case 3, a dust collection chamber 6 in which a dust collection bag such as a paper pack and the like is communicated from the front side to the insertion port 5 into which the hose is inserted, and an electric blower 7 is built-in. A blower chamber 8 and a cord reel chamber 10 containing a cord reel 9 are sequentially provided.

The electric blower chamber 8 and the cord reel chamber 1
In the center of the upper case 3 located above 0, a vertically movable handle 11 is arranged so that its grip portion 12 faces the front-rear direction. A concave portion 13 is formed on the upper surface of the upper case 3 corresponding to the grip portion 12 of the handle 11 so that the hand can be inserted even when the handle 11 is lowered.

As shown in FIG. 3, the handle 11 is composed of an upper member 11a and a lower member 11b, and arm portions 14 and 15 which are vertically movable in the upper case 3 are provided at both front and rear ends of the lower member 11b. Has been formed. Further, a decorative groove 16 extending in the front-rear direction is formed in the center of the upper surface of the upper member 11a.

On the other hand, the upper surface opening 20 of the dust collecting chamber 6 is openably and closably closed by a dust collecting lid 21 having a rotation fulcrum on the rear side. An indicator 22 is attached to the dust collecting lid 21 so as to face the central portion of the upper surface of the dust collecting lid 21 to instruct the user of the amount of dust collected in the dust collecting chamber 6. This indicator 2
2 is covered with an indicator cover 24 shown in FIG. 4, which extends forward and backward so as to be continuous with the handle 11 by exposing only the pointing portion through the hole 23. The indicator cover 24 is attached so that the claws 25 provided on the front, rear, left and right of the lower end of the indicator cover 24 are fitted into the claw holes 26 formed on the upper surface of the dust collection lid 21 and cannot be easily removed.

Since the front end side of the handle 11 is close to the dust collecting lid 21 and the rear end side of the indicator cover 24 due to a space or the like, the dust collecting lid 21 can be removed when the handle 11 is pulled up. When opened, the rear end side of the dust collecting lid 21 and the indicator cover 24 interferes with the front end side of the handle 11.

Therefore, in the present embodiment, the decorative groove 16 formed on the upper surface side of the handle 11 is effectively utilized, the bottom surface on the front end side thereof is inclined downward, and the groove is gently curved outward in the groove. The inclined surface 16a having a circular arc shape is formed without any discomfort. Correspondingly, the indicator cover 24 is effectively utilized to form a longitudinally extending rib 24a at the center of the rear end side of the indicator cover 24 while leaving the dust collecting lid 21 itself.

On the other hand, the electric blower 7 is housed in the base portion 30, and a part of its exhaust gas passes through the exhaust gas recirculation flow path 31 and through the hose or extension pipe connected to the insertion port 5 and the suction tool. It is configured to be returned to.

The remaining exhaust gas is exhausted to the outside through a filter (not shown). Large-diameter rear wheels 32, 32 provided on both sides of the cleaner body 1 are formed with large-area lattice-shaped exhaust ports 33a, 33b, respectively. The structure is such that the exhaust air velocity is suppressed and exhausted. The lattice-shaped exhaust port 33
The outer sides of a and 33b are covered with a wheel cap 34 in which a large number of small holes 34a are formed.

The electric blower chamber 8 and the cord reel chamber 10
Is separated by a seal rib 35, and a vertically long cutout hole 35a is formed in the central portion of the seal rib 35 as shown in FIG. Further, the exhaust ports 33a and 33b of the both rear wheels 32 are formed from the electric blower chamber 8 to the cord reel chamber 10, and the electric blower chamber 8 side is a fine grid-like exhaust port 33a, which is a cord reel. The chamber 10 side is an exhaust port 33b having a coarse grid pattern.

The power cord 36 wound around the cord reel 9 in the cord reel chamber 10 is pulled out from a cord outlet 37 formed at the upper side of the rear side of the cleaner body 1 in which the cord reel chamber 10 is arranged. It has become.

With the above-described structure, when carrying the cleaner body 1 of the present embodiment, the grip portion 12 of the handle 11 in the state shown in FIG. 1 is gripped and the handle 11 is pulled up to lift the cleaner body 1. Grip part 1 of handle 11
A recess 13 is formed on the upper surface of the upper case 2 corresponding to 2, and there is a gap under the grip 12 even when the handle 11 is lowered as shown in FIG. 1, so that the fingers of the hand can be easily inserted. You can hold it.

Further, since the handle 11 is above the electric blower 7 which is heavy and the center of gravity of the cleaner body 1 is located, and the grip portion 12 is attached so as to face the front-rear direction, the wrist is natural. Grip part 12
By grasping and lifting, the cleaner body 1 can be carried in a stable state without rocking back and forth.

Further, since the handle 11 is attached such that the arm portions 14 and 15 on the front and rear ends are both movable up and down, the handle 11 is pulled up as it is, and the cleaner body 1 is kept substantially horizontal. It can be carried in a stable state.

After carrying the cleaner main body 1 with the handle 11 as described above and then releasing the hand from the handle 11, the handle 11 normally lowers by its own weight and returns to the state shown in FIG. There is dust in the gap as you did,
Due to an error in design or manufacturing, the arm portions 14 and 15 may be caught and cannot be lowered by its own weight. Handle 11
When the dust collecting lid 21 is opened while the is being pulled up, the dust collecting lid 21 and the handle 11 interfere with each other.

Even in such a case, according to the above-described structure of the present embodiment, as shown in FIG. 5, as the dust collecting lid 21 is rotated upward to open, the indicator attached to the dust collecting lid 21 is attached. Ribs 2 formed at the rear end of the cover 24
4a enters the front end side of the decorative groove 16 formed on the handle 11 and slidably abuts on the inclined surface 16a of the bottom surface side which is gently curved outward and forms the handle 11 gradually. Since it is pushed down, the dust cover 21 can be opened smoothly.

Therefore, even if the dust collecting lid 21 is opened while the handle 11 is still pulled up, the dust collecting lid 21 including the indicator cover 24 and the handle 11 can be prevented from being damaged. The rib 24a is in contact with the inclined surface 16a in the groove, and even if the inclined surface 16a is damaged by contact, the appearance is not deteriorated because it is in the groove.

Although the present embodiment has been realized by the relatively simple structure as described above, the handle 11 in the pulled-up state is moved downward in conjunction with the opening of the dust collecting lid 21. For example, substantially the same operational effects as described above can be obtained.

Although the arm portions 14 and 15 on both the front and rear ends of the handle 11 are both vertically movable, the invention is also applicable to the case where only the front end side is vertically movable and the rear end side is rotatable. Almost the same action and effect can be obtained.

On the other hand, when cleaning the electric blower 7
Most of the exhaust gas from the exhaust except the recirculated exhaust gas is directly exhausted from the exhaust ports 35a formed in both rear wheels 32 corresponding to both sides of the electric blower chamber 8, but a part is formed in the seal rib 35. It is sent into the cord reel chamber 10 through the cutout hole 35a and cools the power cord 36 in the cord reel chamber 10.

Exhaust ports 33 formed in the rear wheels 32 on both sides
Since a part of the exhaust ports 33b of the a and 33b overlaps the cord reel chamber 10, the exhaust gas that has cooled the power cord 36 can be exhausted through the exhaust port 33b while suppressing the wind speed.

Exhaust air is also emitted from the cord outlet 37 formed on the upper side of the rear side of the cleaner body 1, but since the cord outlet 37 is much smaller in area than the exhaust port 33b, most of it is exhausted. The amount of air discharged from the port 33b and the exhaust from the cord outlet 37 is small in both air volume and air velocity.

When the exhaust port 33b corresponding to the cord reel chamber 10 as in the present embodiment is not provided, the exhaust gas is blown out vigorously from the cord outlet 37, so that the exhaust gas recirculation reduces the exhaust air flow rate as well as the exhaust air flow rate. The main features of vacuum cleaners are impaired.

In order to prevent this, if the exhaust gas is not allowed to flow into the cord reel chamber 10, the power cord 36 in the cord reel chamber 10 cannot be cooled, and the temperature rise becomes large, and the power consumption of the electric blower 7 is reduced. It becomes difficult to exceed a certain level. This means that the electric blower with high power consumption and high suction power cannot be used, and thus the suction performance of the exhaust gas recirculation vacuum cleaner deteriorates.

On the other hand, in the present embodiment, as described above, the power cord 36 can be cooled while suppressing the exhaust air velocity directly discharged from the cleaner body 1 to the outside, so that the electric blower 7 with high power consumption is provided. Can be adopted, and an exhaust gas recirculation vacuum cleaner with high suction performance can be realized.

[0041]

As described above, according to the present invention, a dust collecting lid for opening and closing the opening of the dust collecting chamber on the upper surface side of the cleaner main body, and a vertically movable handle used when carrying the cleaner main body. With a safety mechanism that moves the handle in the raised state downwards in conjunction with the opening of the dust-collecting lid, the handle placed in the vicinity of the dust-collecting lid remains pulled up. Even if the dust collecting lid is opened in this state, damage to the dust collecting lid, the handle, etc. can be prevented.

Further, since the grip portion of the handle is arranged so as to face the front and rear direction of the cleaner body, the grip portion is gripped and lifted while the wrist is in a natural state, and the cleaner body is kept as it is. Can be carried in a stable state without rocking back and forth, and because of the space and the like, the rear end side of the dust collecting lid and the front end side of the handle are inevitably close to each other. is there.

Further, since the arm portions on both ends of the handle can move up and down, the handle can be lifted up as it is, and the cleaner body can be carried in a stable state while being kept substantially horizontal.

The safety mechanism is formed on the rear end side of the dust collecting lid and on the front end side of the handle.
When the dust collecting lid is opened, the projection is contacted with the inclined surface which is inclined in the direction of pushing down the handle, and therefore the above-described effect can be realized with a relatively simple configuration.

Further, a vertical groove is formed on the front end side of the handle so that the bottom surface thereof is an inclined surface, and a protrusion on the rear end side of the dust collecting lid serves as the handle side when the dust collecting lid is opened. By forming vertical ribs that are inserted into the groove and contact the inclined surface on the bottom side, even if there is a contact scratch on the inclined surface on the bottom side in the groove, it is in the groove Is not damaged.

Further, since the inclined surface on the handle side is formed by inclining the front bottom surface of the decorative groove formed on the upper surface side of the handle downwardly, the decorative groove can be effectively utilized and can be realized without any discomfort.

On the other hand, the rib on the dust collecting lid side is attached to the upper surface of the dust collecting lid and is formed at the rear end of the cover for covering the indicator for indicating the dust collecting amount in the dust collecting chamber. By effectively using the cover, the dust collecting lid itself can be realized.

Further, since the handle-side inclined surface is formed to have an outwardly curved arcuate shape, the projection on the dust collecting lid side slidably abuts on the handle-side inclined surface. Then, the handle is pushed down gradually, so the dust cover can be opened smoothly.

[Brief description of drawings]

FIG. 1 is an external perspective view of a cleaner body according to an embodiment of the present invention.

FIG. 2 is a top view of the same.

3A and 3B are component views showing a single handle included in the cleaner body, where FIG. 3A is a side view, FIG. 3B is a front view, and FIG.
Is a top view.

FIG. 4 is a part view showing a single indicator cover attached to the dust collecting cover of the cleaner body, (a) is a side view, (b) is a rear view, and (c) is a rear view.

FIG. 5 is a side view showing an operation when the dust collecting lid of the cleaner body is opened.

FIG. 6 is a perspective view showing the internal configuration of the cleaner body.

FIG. 7 is a top view showing the internal configuration of the cleaner body.

FIG. 8 is a side view of the main body of the vacuum cleaner seen with the wheel cap removed.

FIG. 9 is a side sectional view of the cleaner body.

[Explanation of symbols]

1 Vacuum cleaner body 2 lower case 3 upper case 4 body case 5 outlet 6 Dust collection chamber 7 electric blower 8 electric blower room 9 cord reels 10 cord reel room 11 handle 11a Upper member 11b Lower member 12 Grip part 13 recess 14,15 Arm part 16 Makeup groove 16a inclined surface 20 Dust collection chamber opening 21 Dust cover 22 Indicator 24 Indicator cover 31 exhaust gas recirculation flow path 33a, 33b exhaust port 35 Seal rib 35a Notch hole 36 power cord 37 Cord outlet

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinichi Hagino             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Jun Yoshida             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Tatsunori Fukuda             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F-term (reference) 3B006 DA00                 3B057 FA14 FA21

Claims (8)

[Claims] 1. A dust collector lid for opening and closing an opening of a dust collector and a vertically movable handle used when carrying the cleaner body are provided on an upper surface side of the cleaner body, and the dust collector lid is opened. An electric vacuum cleaner equipped with a safety mechanism for moving a handle in a raised state downwards in conjunction with. 2. The electric vacuum cleaner according to claim 1, wherein the handle is arranged such that a grip portion thereof faces the front-back direction of the cleaner body. 3. The handle according to claim 1, wherein arm portions on both end sides of the handle are vertically movable.
Vacuum cleaner as described. 4. The safety mechanism is formed on a rear end side of the dust collecting lid and on a front end side of the handle, and when the dust collecting lid is opened, the protrusion hits and pushes down the handle. An electric vacuum cleaner according to any one of claims 1 to 3, comprising an inclined surface inclined in a direction. 5. A vertical groove is formed on the front end side of the handle, the bottom surface of which is the inclined surface, and the handle is provided as a projection on the rear end side of the dust collecting lid when the dust collecting lid is opened. 5. The vacuum cleaner according to claim 4, wherein a vertical rib that is inserted into the groove on the side and abuts on the inclined surface on the bottom side is formed. 6. The vacuum cleaner according to claim 5, wherein the inclined surface on the handle side is formed by inclining a front bottom surface of a decorative groove formed on the upper surface side of the handle downward. 7. The rib on the dust collecting lid side is formed at a rear end of a cover that is attached to face an upper surface of the dust collecting lid and covers an indicator for indicating a dust collecting amount in the dust collecting chamber. The vacuum cleaner according to claim 5 or claim 6. 8. The electric vacuum cleaner according to claim 4, wherein the handle-side inclined surface is formed so as to have an outwardly curved arcuate shape.