JPH10314075A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a vacuum cleaner which is easy to use and prevents clogging in a suction passage. SOLUTION: A dust collection chamber lid 2 that opens and closes a dust collection chamber 18 freely.
2 and one end thereof communicates with the hose 21 and the other end thereof communicates with the dust collecting chamber 1.
8 is provided, and a wall surface 34 of the dust collection chamber lid 22 facing the connection section 19a is projected forward, and the distance L between the connection section 19a and the inner wall of the dust collection chamber lid 22 is large. Thus, the passage of the dust flowing from the connecting portion 19a can be made large, and the problem of dust clogging can be solved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner used in ordinary households.

[0002]

2. Description of the Related Art Conventionally, this kind of vacuum cleaner is disclosed in
No. 2-12116.

Hereinafter, description will be made with reference to FIG. Reference numeral 3 denotes a motor having a dust collecting chamber 1 provided above and a motor 2a provided below.
Each of the chambers 2 is provided with a cleaner main body, and a handle 5 is attached to an upper portion of the cleaner main body 3 via a pipe 4. The dust collection chamber 1 includes a dust box 7 having an opening 7a in the front, and a dust collection chamber lid 8 that opens and closes the opening 7a.
It is formed with.

[0004] The motor chamber 2 is formed by a motor chamber lid 9 which covers the lower part of the dust box 7 and its opening. Reference numeral 15 denotes a connection pipe having one end facing the inside of the dust collection chamber 1 and the other end connected to an intake pipe 14 described later. A substantially arc-shaped wall 15 a is provided at an end on the dust collection chamber 1 side. . Reference numeral 6 denotes a filter for collecting the sucked dust, and a suction opening 6c.
And a filter plate 6a.

The attachment of the filter 6 to the dust collecting chamber 1 is completed by inserting the suction opening 6c of the mouth plate 6b into the end of the connecting pipe 15 on the dust collecting chamber 1 side. 10 is a dust box 7
And a dividing line between the dust collecting chamber lid 8 and the front part of the dust collecting chamber lid 8, which is substantially parallel and substantially linear.

Reference numeral 11 denotes a nozzle body having a dust suction port 11a for sucking dust in front of the lower surface.
It is attached to the main body 3 so as to be freely rotatable about a rotary shaft 12 near the position 0.

13 is a hose, one end of which is a dust inlet 11a.
The other end is connected to a connecting pipe 15 via an intake pipe 14 so as to communicate with the nozzle body 11.

With the above configuration, when the cleaner main body is operated, the dust sucked from the dust suction port 11a as indicated by the arrow in FIG. 4 by the suction force of the motor-2a in the motor chamber 2 is removed. , A hose 13, an intake pipe 14, and a connecting pipe 15 to reach the filter 6. Since a substantially arc-shaped wall 15a is formed on the side of the dust collection chamber 1 of the connecting pipe 15, even if dust such as a solid material comes in from the side of the intake pipe 14, the wall 15a is lower. Since the direction can be changed to
Filter paper 6a of filter 6 located in the axial direction of connecting pipe 15
Never break.

[0009]

However, in such a configuration, since the connecting pipe 15 has the substantially arc-shaped wall 15a at the end, particularly large dust enters from the intake pipe 14 side. When it comes, there is a problem that the inside of the connecting pipe 15 is clogged. When the filter 6 is attached to the end of the connecting pipe 15, the upper part of the filter paper 6a is not sufficiently accommodated in the dust box 7 because the dust box 7 is shallow, and the gap between the opening edge 7a and the dust collecting chamber lid 8 There is a problem that the filter paper 6a is erroneously pinched and the airtightness in the dust collection chamber is reduced.

The present invention is intended to solve the above-described problem, and prevents the clogging of dust flowing from an intake pipe,
It is another object of the present invention to provide a vacuum cleaner with good usability by preventing a part of a paper bag from being caught between a dust box and a dust collection chamber lid.

[0011]

According to the present invention, there is provided a dust-collecting chamber cover for opening and closing the dust-collecting chamber, one end of which communicates with a hose, and the other end of which is connected to the dust-collecting chamber. And a wall facing the connecting portion of the dust collecting chamber lid is projected forward, so that the distance between the connecting portion and the inner wall of the dust collecting chamber lid increases, and the dust flowing from the connecting portion increases. Can be taken large, and the problem of dust clogging can be solved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION
A vacuum cleaner body having a motor chamber disposed below and a dust collection chamber disposed above the motor chamber, and a dust suction port provided at a lower front surface and rotatable at a lower portion of the cleaner body. A dust collecting chamber cover for opening and closing the dust collecting chamber, a hose having one end communicating with the dust suction port, and one end communicating with the other end of the hose. A connecting portion having the other end facing the dust collecting chamber,
The wall facing the connecting portion of the dust collection chamber lid is projected forward, so that the distance between the connecting portion and the inner wall of the dust collection chamber lid is increased, so that the passage of dust flowing from the connecting portion can be increased, and The problem of clogging can be eliminated.

According to a second aspect of the present invention, the dividing line formed by the dust collecting chamber lid and the opening edge of the dust collecting chamber is made substantially parallel to the projecting wall of the dust collecting chamber lid, and is connected. The distance between the paper bag mounting portion of the section and the opening edge of the dust collection chamber is increased, the paper bag does not protrude outside, and the paper bag does not get caught between the opening edge of the dust collection chamber and the dust collection chamber lid.

According to a third aspect of the present invention, the cross section of the projecting wall of the dust collection chamber cover is formed in a substantially arc shape, and the air flowing from the connecting portion flows along the substantially arc shaped wall. Even if the dust that flows smoothly and enters from the connecting portion hits the inner wall of the dust collection chamber lid through the paper bag, the impact is buffered by the substantially arc-shaped wall to prevent the paper bag from being broken.

According to a fourth aspect of the present invention, there is provided a cleaner body having a dust collecting chamber disposed at a front portion and a motor chamber having a built-in motor disposed at a rear portion, and the dust collecting chamber. A partition wall for partitioning the motor chamber, and a suction port formed in the dust collection chamber and connecting one end of a hose, wherein a portion of the partition wall facing the suction port projects rearward, The distance between the suction port and the partition wall is increased, so that the passage of the dust flowing from the suction port can be increased, and the dust can be prevented from being clogged.

[0016]

【Example】

(Embodiment 1) A first embodiment corresponding to the first aspect of the present invention will be described below with reference to FIG.

The cleaner body 16 has a motor 24 at the bottom.
A dust chamber 18 is provided above a motor chamber 24 containing a. The dust collecting chamber 18 is formed by a dust box 23 having a front opening and a dust collecting chamber lid 22 that opens and closes the opening 18a. A connecting portion 19a is provided on the rear wall of the dust box 23. A paper bag 20 for dust collection is detachably attached to the end of the dust collection chamber 18 on the side of the dust collection chamber 18.

Reference numeral 19 denotes an intake pipe rotatably connected to the other end of the connecting portion 19a. A hose 21 is connected to the other end of the intake pipe 19 so as to communicate therewith.

The opening of the motor chamber 24 is the motor chamber lid 2.
4c, and a suction port 24b is provided on the dust collection chamber 18 side.
Is provided.

The dust chamber lid 22 and the motor chamber lid 24
c is provided with a rotation locking portion 26, and a buckle 27 is formed above the dust collection chamber lid 22, and the dust collection chamber lid 22 is The dust collecting chamber 18 is provided so as to be rotatable about the portion 26 as a fulcrum and detachable from the dust collecting chamber 18.

In the lower part of the cleaner body 16, a nozzle portion 31 is rotatable around a shaft 28 or a hole portion 29 provided on the side surface of the dust box 23 or the motor chamber cover 24c or both sides thereof. It is provided in. A dust inlet 31 a is provided at the front of the lower surface of the nozzle portion 31 and communicates with the hose 21.

A handle 32 is provided on the upper surface of the cleaner body 16.
Are arranged. A projecting portion 34 is formed on a wall surface of the dust collecting chamber cover 22 facing the connecting portion 19a so as to project outward.

With the above configuration, when the cleaner body 16 is operated, air containing dust sucked from the dust suction port 31a passes through the hose 21, the suction pipe 19, and the connecting portion 19a.
The air collected and cleaned in the paper bag 20 in the dust collecting chamber 18 is sucked through the suction port 24b and discharged to the outside through the motor chamber 24.

The protrusion (34) located at a position facing the connecting portion 19a of the dust collecting chamber cover 22 increases the distance (L) from the mounting position 20a of the connecting section 19a to the paper bag 20 to the inner wall of the dust collecting chamber cover 22. Therefore, even if the dust rushes into the paper bag 20 from the connecting portion 19a, the dust travels downward according to the flow of the suction wind before strongly colliding with the inner wall of the dust collection chamber lid 22 via the paper bag. Even if an arc-shaped wall such as that described above is not provided at the end of the connecting portion 19a, the paper bag 20 will not be broken.

Further, the dust collection volume is increased, and the connecting portion 19
The passage of the dust flowing from a becomes large, and the occurrence of dust clogging can be prevented.

(Embodiment 2) Next, a second embodiment corresponding to the second aspect of the present invention will be described with reference to FIGS. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

In the drawing, reference numeral 35 denotes a dividing line between the dust collection chamber lid 22 and the dust box 23,
3 is also the opening edge. The portion of the dividing line 35 facing the connecting portion 19 a is formed substantially parallel to the projecting portion 34 of the dust collection chamber lid 22.

With the above configuration, the paper bag 20 of the connecting portion 19a
Since the mounting position 20a of the dust collecting chamber 18 becomes deeper with respect to the dividing line 35, the paper bag 20 is not caught between the dust collecting chamber lid 22 and the opening edge of the dust box 23, and the airtightness in the dust collecting chamber 18 is sufficiently secured. Thus, a sufficient dust collecting effect can be obtained.

(Embodiment 3) Next, a third embodiment corresponding to the third aspect of the present invention will be described with reference to FIG.

In the present embodiment, the cross-sectional shape of the projecting portion 34 projecting outward from the dust collecting chamber cover 22 is formed in a substantially circular arc shape. Since the air flows smoothly downward along the inner wall of the protruding portion 34 without turning in the inside 18, dust does not partially accumulate in the paper bag 20. Furthermore, even if dust flowing from the connecting portion 19a hits the inner wall of the dust collection chamber lid 22 via the paper bag 20, the impact is buffered because the projection 34 is substantially arc-shaped, and the paper bag 20 is torn. There is also an effect that can be prevented.

(Embodiment 4) Next, a fourth embodiment corresponding to the invention described in claim 4 of the present invention will be described with reference to FIG.

Although the first to third embodiments have been described using the example of the vertical vacuum cleaner, this embodiment will describe a floor-moving vacuum cleaner.

In the figure, reference numeral 39 denotes a dust collecting chamber 18 in which a paper bag 20 for collecting dust is mounted at a front portion, and a motor-3 at a rear portion.
Motor chamber 37a with a built-in 7 and a cord winding device 3
8 is a main body of the vacuum cleaner in which 8 are arranged.

Reference numeral 40 denotes a partition wall for separating the motor chamber 37a and the dust collecting chamber 18, and an intake hole 41 is formed at a position facing the motor 37. Reference numeral 42 denotes a second filter provided so as to cover the intake hole 41.

Reference numeral 19 denotes an intake pipe connected to one end of a hose (not shown), which is detachably connected to a suction port 18a of the dust collection chamber 18. The paper bag 20 is provided with the suction port 18.
a is mounted on the dust collection chamber 18 side.

At a portion of the partition wall 40 facing the intake pipe 19, a protruding portion 34 protruding rearward in a substantially arc shape is formed.

With the above configuration, the distance (L) from the position where the paper bag 20 is mounted to the partition wall 40 can be increased, the dust collection volume increases, and the path of the dust flowing from the intake pipe 19 becomes longer. In addition, the occurrence of dust clogging can be prevented.

In each of the above embodiments, the dust collection bag is formed by using a disposable paper bag to improve the usability. However, the same effect can be obtained by using a cloth dust bag, for example. .

[0039]

As described above, according to the first aspect of the present invention, the connecting portion and the dust collecting chamber are formed by projecting the wall of the dust collecting chamber lid facing the connecting portion outwardly. The distance of the inner wall of the lid increases, and the dust collection volume can be increased.
Dust clogging in the passage of dust flowing from the connecting portion is eliminated.

According to the second aspect of the present invention, the paper bag is made up of the dust box and the dust collecting chamber lid by projecting the dividing line formed by the dust collecting chamber lid and the opening edge of the dust collecting chamber forward. And the airtightness in the dust collection chamber is ensured.

According to the third aspect of the present invention, since the cross-sectional shape of the projecting portion provided on the dust collecting chamber cover is formed in a substantially arc shape, the air flowing from the connecting portion can be substantially arc-shaped. Flows smoothly along to prevent dust clogging caused by swirling of the air flow.Also, even if dust flowing from the connecting portion hits the inner wall of the dust collection chamber lid, the impact is cushioned by the substantially arc-shaped wall. To prevent tearing of the paper bag.

According to the invention of claim 4 of the present invention, since the portion of the partition wall facing the intake pipe projects rearward, the distance between the intake pipe and the partition wall is increased, and dust collection is performed. The volume can be increased and dust clogging can be eliminated.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a vacuum cleaner showing first to third embodiments of the present invention.

FIG. 2 is a perspective view of the vacuum cleaner with a dust collection chamber lid removed.

FIG. 3 is a partially broken plan view of a vacuum cleaner showing a fourth embodiment of the present invention.

FIG. 4 is a partially cutaway side view showing a conventional vacuum cleaner.

[Explanation of symbols]

 16 Vacuum cleaner main body 18 Dust collection chamber 18a Suction port 19 Connecting part 21 Hose 22 Dust collection chamber lid 24 Motor chamber 31 Nozzle part 31a Dust suction port 34 Projection 37a Motor room 39 Vacuum cleaner main body 40 Partition wall

Claims (4)

[Claims] 1. A motor chamber is provided below the motor chamber,
A cleaner body having a dust collection chamber disposed above the chamber, a nozzle portion having a dust suction port on the lower front surface and rotatably attached to a lower portion of the cleaner body, and opening and closing the dust collection chamber. A dust collecting chamber lid, a hose having one end communicating with the dust suction port, a connecting part having one end communicating with the other end of the hose, and the other end facing the dust collecting chamber, A vacuum cleaner characterized in that a wall surface of the dust collecting chamber cover facing the connecting portion protrudes forward. 2. The vacuum cleaner according to claim 1, wherein a dividing line formed by the dust collecting chamber lid and an opening edge of the dust collecting chamber is substantially parallel to a wall of the dust collecting chamber lid. 3. The vacuum cleaner according to claim 1, wherein the cross-sectional shape of the wall of the dust collection chamber lid is formed in a substantially arc shape. 4. A vacuum cleaner body having a dust collecting chamber at the front and a motor chamber containing a motor at the rear, and a partition for separating the dust collecting chamber from the motor chamber. An electric vacuum cleaner comprising: a wall; and a suction port formed in the dust collecting chamber and connecting one end of a hose, and a portion of the partition wall facing the suction port is projected rearward.