JPS6155968B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vacuum cleaner in which dust is disposed of through a non-breathable dust collection bag such as a plastic bag.

Conventional technology Conventionally, this type of vacuum cleaner bypasses the filter section to collect dust so that the dust bag does not come into close contact with the filter section due to suction pressure and adversely affect its overfunction. A low-pressure communication path leading to the back of the bag is formed from the suction side of the fan motor, and if necessary, air is introduced into the back of the dust bag to intentionally displace the bag toward the filter section.
This compressed the collected dust and substantially increased the amount of collected dust.
Publication No. 6623, Publication No. 49-28363).

Problems to be Solved by the Invention In the above-mentioned conventional configuration, a special valve means is required to control the introduction of air into the back of the dust bag, which complicates the configuration and also makes the installation location difficult. It was located at the bottom of the machine and was difficult to operate.

Furthermore, the bag is set to be displaced upward when compressing dust, and the weight of the collected dust is added as a load to the bag's displacement, which sometimes prevents sufficient compression.

The present invention solves these conventional problems and provides a vacuum cleaner that is easy to use and can collect a large amount of dust.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention has a main body incorporating a fan motor, and a main body that is detachably connected to the front suction side of the main body, and the front opening is closed with a buckle. A lid body that can be opened and closed and held in the same state, and a filter device is provided at the rear opening, and a collection chamber is formed between the lid body and the filter device to collect dust that has passed through the filter device. A dust box, a non-ventilated dust bag removably attached to the front opening of the dust collection box that can be opened and closed with a lid, and a dust bag that bypasses the filter device to the back of the dust bag and the suction side of the fan motor. The lid body has an air inlet path that communicates with the back of the dust bag, and the buckle has a hole that releases this air inlet path to the atmosphere when the lock is unlocked. It was established.

Effect According to the present invention, during normal operation of the vacuum cleaner, the pressure at the back of the dust bag is lower than that at the side of the filter device by the amount of ventilation resistance of the filter device.
Therefore, the bag is held on the lid side.

In addition, when compressing the collected dust, move the buckle on the lid in the unlocking direction, the air introduction passage will be opened through this hole, air will flow into the back of the dust bag, and the pressure will increase. The bag is displaced toward the filter device and the dust is compressed. In this case, since the bag compresses the dust in the horizontal direction, it is not affected by the weight of the dust.

Example Examples thereof will be described below with reference to the accompanying drawings.

In the figure, 1 has a built-in fan motor 2 and a cord reel 3, and has a handle 4 on the top.
Main body with wheels 5 at the bottom, 6 is a buckle 7
A dust collecting box is detachably connected to the front part of the main body, that is, to the suction side of the fan motor 2 through the dust collecting box. A removable filter device 11 is provided in each of the rear openings 10. The filter device 11 includes a filter case 13 with a frame 12 provided at the rear opening, a bearing sleeve 14 projecting forward from the center of the frame 12, and a primary filter 15 that is pivotally supported within the bearing sleeve 14. and a rotating shaft 17 to which a secondary filter 16 is coupled. And the above primary filter 15
is the filter case 13 via the packing 18.
It slides into contact with the front opening edge of the dust collection box 6, and faces perpendicularly to the front dust collection chamber 19 of the dust collection box 6. Further, the secondary filter 16 has a cylindrical shape with many pleats, and is housed within the filter case 13. 20 is a packing that maintains airtightness between the filter case 13 and the dust collection box 6;
Reference numeral 1 denotes a dust remover made of an elastic material, which is fixed to the bearing cylinder 14 and whose tip comes into contact with the folds of the secondary filter 16; 22 is an opening provided at the lower part of the filter case 13, and the dust collector is removed through the partition wall 23; It communicates with a fine dust chamber 24 divided into sections at the bottom of the chamber 19.
The fine dust chamber 24 and the dust collection chamber 19 are connected to the dust collection box 6.
It faces close to the front opening 8 of.

Reference numeral 25 denotes an intake port having one end opened in front of the dust collection box 6 and the other end opened in the peripheral wall of the dust collection chamber 19;
6 is a non-breathable dust bag such as a plastic bag whose opening is removably attached to the front opening 8 of the dust collection box 6 via a ring 27; 28 is a buckle on the lid body 9; 29 is 1
30 is an intermediate transmission mechanism that transmits the rotation of the cord reel 3 to the primary and secondary filters 15 and 16 via the rotating shaft 17; 31 is a rib for scraping off dust in the vicinity of the secondary filter 15; The handle and 32 are the same wheels.

To explain the basic operation of the vacuum cleaner, the dust-containing air flowing in from the intake port 25 passes through the primary filter 1.
When passing through the secondary filter 16, coarse dust is filtered out, while fine dust is filtered out when passing through the secondary filter 16, and only clean air is exhausted through the fan motor 2. and,
The coarse dust passed through the primary filter 15 is transferred to the dust collection chamber 1.
9, the fine dust filtered by the secondary filter 16 passes through the opening 22 and accumulates in the fine dust chamber 24. Also, through the cord reel 3, the primary and secondary filters 15,
When the filter 16 is rotated, the dust adhering to the primary filter 15 is scraped off by the rib 29 that rotates relative to the primary filter 15, and the fine dust adhering to the secondary filter 16 is removed by the dust remover 21 hitting its folds. removed.

Next, when the lid 9 is removed and the opening 8 is turned downward, the coarse dust in the dust collection chamber 19 and the fine dust in the fine dust chamber 24 are stored in the dust bag 26, and the ring 27 is operated. The dust can be disposed of while being placed in the dust bag 26.

By the way, the dust bag 26 is usually pressed against the edges of the mouth of the dust collection chamber 19 facing the opening 8 and the mouth of the fine dust chamber 24 via the lid 9, and both mouths are pressed against the edges of the mouth of the dust collection chamber 19 and the mouth of the fine dust chamber 24, respectively. Along with this, the area is blocked. Further, the lid body 9 and the dust bag 26 communicate with the suction side of the fan motor 2 via a communication path 33. The suction force of the fan motor 2 acts on the back surface of the dust bag 26 to prevent the dust bag 26 from being attracted to the primary filter 15.

Now, 34 is an atmosphere introduction path formed in the lid body 9,
When the buckle 28 is moved in the unlocking direction, the buckle 2
8, and the back of the dust bag 26 is opened to the atmosphere.

However, if the air introduction path 34 is opened as described above while the fan motor 2 is being driven, the low pressure in the communication path 33 is canceled out by the introduction of air, and the dust bag 26 is thereby displaced toward the primary filter 15. It happens.

The dust in the dust collection chamber 19 is compressed by the displacement of the dust bag 26.

Of course, if the air introduction path 34 is closed, the suction force of the fan motor 2 will effectively work on the communication path 33, so the dust bag 26 will be displaced toward the lid 9 again and will not affect the dust collection performance. be.

Effects of the Invention As described above, the present invention not only enables sanitary dust disposal through a dust collection bag, but also maintains good filter function by controlling the back pressure of the bag, and occasionally It has excellent effects, such as being able to be used for compressing dust by intentionally displacing it toward the filter side. Furthermore, since the buckle is used for controlling the back pressure, no other valve device is required, which not only simplifies the configuration but also improves operability. In addition, dust can be compressed reliably because its weight is not applied.

[Brief explanation of the drawing]

FIG. 1 is a cutaway sectional view of a vacuum cleaner showing an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of essential parts. DESCRIPTION OF SYMBOLS 1... Main body, 2... Fan motor, 6... Dust collection box, 8... Opening, 9... Lid body, 11... Filter device, 19... Dust collection chamber, 26... Dust collection bag, 28... Buckle,
33...Low pressure communication path, 34...Atmospheric introduction path, 35...
Hole.

Claims (1)

[Claims] 1 A main body with a built-in fan motor, which is removably connected to the front suction side of this main body, has a lid that can be opened and closed and is held closed with a buckle at the front opening, and a filter device at the rear opening. Furthermore, between the lid body and the filter device, there is a dust collection box forming a dust collection chamber for the dust passed through the filter device, and a dust collection box that can be detachably attached to the front opening of the dust collection box that is opened and closed by the lid body. It is equipped with an attached non-ventilated dust bag and a low-pressure communication path that bypasses the filter device and connects the back of the dust bag and the suction side of the fan motor. A vacuum cleaner that has an atmosphere introduction path that communicates with the back, and a hole in the buckle that opens the atmosphere introduction path to the atmosphere when the lock is unlocked.