JPH045941A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent the deterioration of the suction performance by preventing a dust collecting bag from adhering to a suction hole, and also, to prevent the dust collecting bag from being broken by providing a rib body on the dust collecting bag side in parallel to a filter holding rib body provided in a dust collecting chamber. CONSTITUTION:In the inside of a dust collecting chamber 25, plural pieces of rib bodies A31 having width of several mm for preventing a fact that a paper bag 24 adheres to an inner wall of the dust collecting chamber 25 at the time when suction force of a motor-driven air blower 22 is applied, a vent passage becomes small and suction force drops are provided in parallel to a wall 27. Also, in order to prevent dust from intruding into the motor-driven air blower 22 from a suction hole 28, a filter 32 having gas permeability is provided on the dust collecting chamber 25 side, and in order to hold this filter 32, plural pieces of rib bodies B33 having width of several mm are provided in parallel to the wall 27 at a clearance of the extent of thickness of the filter 32 extending from the suction hole 28 to the dust collecting chamber 25 side, a rib body C34 for connecting this rib body B33 and the rib body A31 by thickness of 1 - 2mm is provided, and the rib body A31 and the rib body B33 are reinforced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vacuum cleaner having a dust collection bag.

2. Description of the Related Art Conventionally, this type of vacuum cleaner has generally had the configuration shown in FIGS. 5 to 7. The configuration will be described below based on the drawings.

1 is an electric blower 2. A vacuum cleaner main body (hereinafter referred to as the main body) with a built-in cord winding device 3, and a dust collection chamber 5 to which a paper bag 4 for collecting dust sucked into the suction side of the electric blower 2 is attached.
have. 6 is an intake port to which a hose (not shown) is detachably attached.

Reference numeral 7 denotes a wall that partitions the electric blower 2 mounting part and the dust collection chamber 5. In order to transmit the suction force of the electric blower 2, an air intake hole 8 is formed, and around this air intake hole 80, a wall protrudes toward the electric blower 2 side. The electric blower 2 has an annular lip 9 for holding the electric blower 2, and an air tight support rubber 10 made of an elastic body such as rubber is disposed between the lip 9 and the electric blower 2. Inside the dust collection chamber 5, when the suction force of the electric blower 2 is applied, the paper bag 4 sticks to the inner wall of the dust collection chamber 6, reducing the number of ventilation channels and reducing the suction force.・＼
-7 To prevent this, multiple rib members A11 each having a thickness of 1 to 2 gates are provided. In addition, in order to prevent dust from entering the electric blower 2 through the intake hole 8, a breathable filter 12 is provided on the side of the dust collection chamber 5. A plurality of rib bodies B13 having a width of several blades are provided parallel to the width direction of the filter 12 with a gap approximately the thickness of the filter 12 on the side of the chamber 5.

Problems to be Solved by the Invention In such a conventional configuration, the distance a between the lip bodies A11 is large, and the paper bag 4 gets stiff between the rib bodies A11 and reduces the suction force. Since it was only thick, it had problems such as tearing the paper bag. Moreover, in recent years, there has been a tendency for the suction power to become significantly higher, and the above-mentioned problems are becoming more and more serious.

Furthermore, a rib body B13 having a width of several wings parallel to the wall 7
Since the filter was formed with a gap between the wall 7 and the filter 12 (approximately a certain number), the mold structure was complicated and the moldability was poor.

The present invention solves the above-mentioned problems, and prevents the paper bag 4 from sticking to the air intake hole 8 portion without impairing the retention properties of the filter 12. By ensuring a sufficient ventilation flow path, the suction The purpose of the present invention is to provide a vacuum cleaner that has good performance without sacrificing strength, has a simple mold, and has good moldability.

Means for Solving the Problems A first means of the present invention to solve the above-mentioned problems is to arrange a dust collecting bag-side helical member C in parallel with a filter holding rib member B disposed in the dust collection chamber 5. It is to be established.

Moreover, as a second means, a rib body B for holding the filter is used.
The rib body A is formed perpendicularly to the filter with a thickness of one or two sides, and the rib body A for ensuring a ventilation flow path is formed parallel to the filter and has a width of several wings.

Effect The effect of the above-mentioned means of the present invention is to move the dust collection bag to the rib body C.
By receiving it on a surface of a certain width parallel to the dust collection bag, it is possible to prevent the dust collection bag from sticking to the air intake hole, prevent performance deterioration, and improve the dust collection. This prevents the bag from tearing. In addition, by forming one or two ribs B for holding the filter at right angles to the filter, and forming the ribs A for securing the ventilation flow path parallel to the filter with a certain width, the air intake hole and The distance from the parallel rib body having a width of several gates increases, which facilitates the mold structure and improves moldability.

EXAMPLE Hereinafter, an example of the first aspect of the present invention will be described based on the drawings.

In FIGS. 1 to 3, 21 is a vacuum cleaner main body (hereinafter referred to as the main body) that includes an electric blower 22, a cord winding device 23, etc., and collects dust sucked into the suction side of the electric blower 22. It has a dust collection chamber 25 in which a paper bag 24 is attached. Reference numeral 26 denotes an intake port to which a horn (not shown) is detachably attached, and is formed in the attachment portion of the paper bag 24 of the dust collection chamber 26.

27 is a wall that partitions the electric blower 22 mounting part and the dust collection chamber 25, and the suction force of the electric blower 22 is transferred to the dust collection chamber 256\-
1, an intake hole 28 is formed in order to connect the electric blower 2 to the electric blower 22.
2 has a protruding annular rib 29 for holding, and a lip 2 with
An air tight support rubber 30 made of an elastic material such as rubber is disposed between the electric blower 9 and the electric blower 220.

Inside the dust collection chamber 25, there is a rib body A31 for preventing the paper bag 24 from sticking to the inner wall of the dust collection chamber 25 when the suction force of the electric blower 22 is applied, thereby reducing the ventilation flow path and reducing the suction force. A plurality of these are arranged parallel to the wall 27 with a width of several mm. In addition, in order to prevent dust from entering the electric blower 22 through the intake hole 28, a filter 32 with ventilation is provided on the side of the dust collection chamber 25.
In order to maintain this, a plurality of rib bodies B33 having a width of several wings are provided parallel to the wall 27 with a gap about the thickness of the filter 32 from the air intake hole 28 to the dust collection chamber 25 side.
A rib body C34 connecting the rib body A31 and the rib body A31 with a thickness of 1 to 2 folds is provided to reinforce the rib body A31 and the rib body B33.

78-- When the paper bag 24 expands due to the suction force of the electric blower 22 or due to accumulated dust, the paper bag 24 hits the rib body A31.
It is a flat surface with a width of several mm, which prevents the paper bag from being easily torn, and the rib body A31 has a width of several mm.
By having a width of , the rib body A31 and the rib body A31
The paper bag 24 is less likely to fit between the ribs A31, and the paper bag 24 is less likely to get stuck in the air intake hole 28, thereby preventing a decrease in suction force.

Next, an embodiment according to the second invention will be described.

In FIG. 4, reference numeral 31 denotes a rib body A disposed on the side of the intake hole 28 in the dust collection chamber 25, and is formed parallel to the wall 27 with a width of several inches. 33 is a rib body B formed with a thickness of 1 to 2 mm toward the intake hole 28 side at right angles to the rib body A31;
A filter 32 installed on the dust collection chamber 25 side of the air intake hole 28 is held.

The operation in the above configuration is that the paper bag 24 expands when it receives the suction force of the electric blower 22 or when dust accumulates, but at this time, the paper bag 24 hits the rib body A31 having a flat surface with a width of the quantity. This makes the paper bag less likely to tear. Further, since it is parallel to the wall 27, the distance between the body A31 and the body A31 can be larger than that in the conventional case.

Effect of the invention As described above, the effects of the present invention are as follows.

That is, by forming the suction side rib body with a width parallel to the wall having the suction hole, (1) the rib body that contacts the paper bag is flat, and the paper bag becomes difficult to tear.

■ The gap between the flat ribs becomes smaller, which prevents the paper bag from sticking to the air intake hole and causing a drop in suction power.

In addition, the rib body that comes into contact with the paper bag is a plane parallel to the wall having the intake hole and has a width of several degrees, and the rib body on the filter side is
By forming the ribs at right angles to the planar ribs and having a thickness of 1 to 2 mm, (1) the paper bag is made difficult to tear;

9・＼−7 ■ The paper bag does not stick to the air intake hole and prevents the suction power from decreasing.

■ The distance between the planar rib body and the wall can be increased,
Improve mold strength.

■ Improved moldability.

etc., various effects can be obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a main part in an embodiment of the present invention, FIG. 2 is a partial side sectional view, FIG. 3 is a partial plan sectional view, and FIG. 4 is a perspective view of a main part in another embodiment of the invention. FIG. 5 is a partial perspective view of a conventional example, FIG. 6 is a partial side sectional view, and FIG. 7 is a partial plan sectional view. 22...Electric blower, 24...Paper bag,
25...Dust collection room, 27...Wall, 28.
...Intake hole, 31...Rib body A132.
...filter, 33...river rib body B134...
...Rib body C8

Claims (2)

[Claims] (1) A vacuum cleaner body with a built-in electric blower, a dust collection chamber, etc., and a wall that partitions the electric blower installation part and the dust collection chamber into which the dust collection bag is installed; A filter that has a communicating intake hole formed therein and is arranged to cover the intake hole from the dust collection chamber side, a rib body A that comes into contact with the intake hole side when the dust collection bag is expanded, and a rib that holds the filter. A vacuum cleaner comprising a body B, and the rib body A and the rib body B are formed in a plane with a width of several mm parallel to a wall. (2) The rib body A is formed parallel to the wall in a plane having a width of several mm, and the rib body B is formed in a direction perpendicular to the rib body A from 1 to 3 mm.
The vacuum cleaner according to claim 1, which is formed to have a thickness of 2 mm.