JPS5822692Y2 - vacuum cleaner - Google Patents

Description

[Detailed explanation of the invention] Conventionally, the front case and the rear case of the main body can be divided into two parts, and the main filter is attached to the filter case that is detachably attached to the opening of the front case of the main body. A rotating shaft is passed through the main filter, and a cylindrical pre-filter is fixed to the tip of the rotating shaft with an appropriate gap between the main filter and the rotating shaft. In a vacuum cleaner, a vibrator is provided that impacts the inner surface of the main filter when operated, and dust sucked in from the suction port when the body-motion blower is driven is collected on the outer peripheral wall of the pre-filter. The free end of the pre-filter was kept in constant contact with the inner bottom surface of the front case of the main body to prevent large particles from flowing into the free end of the pre-filter, so when rotating the vibrator and pre-filter during dust removal, the free end of the pre-filter The friction between the front part and the inner bottom surface of the front case of the main body was large and it was not possible to rotate it easily.

The present invention was devised to eliminate the above-mentioned drawbacks, and when feeding between the front case and the rear case of the main body, the free end of the pre-filter comes into contact with the inner bottom surface of the front case of the main body, A pre-filter moving mechanism is provided so that the free end of the pre-filter separates from the inner bottom surface of the main body front case when the pre-filter is not connected to the case.

A detailed explanation will be given below using an example shown in the drawings.

Reference numeral 1 denotes a vacuum cleaner main body consisting of a main body front case 2 and a main body rear case 3, and these main body front case 2 and main body rear case 3 include attachment fittings (not shown), latches (not shown), etc. It is provided so that it can be divided by.

Reference numeral 4 denotes a handle for transportation provided on the upper part of the front case 2 of the main body.

Reference numeral 5 denotes a suction port that connects suction port assemblies (not shown) and sucks air through these suction port assemblies, and this suction port 5 is bored in a part of the main body front case 2.

Reference numeral 6 denotes a cylindrical main filter, which has a wave-shaped cross section.The main filter 6 is surrounded by a cylindrical pre-filter and is attached to a filter case 8 within the front case 2 of the main body.

Reference numeral 9 designates a rotating shaft that passes through the center of the main filter 6 from the filter case 8 and is fixed to the pre-filter flap with a nut 10, and the rotating shaft 9 is attached to one end protruding toward the filter case 8 side. An operating knob 11 for operating the device is attached.

Reference numeral 12 denotes a vibrator attached to the rotary shaft 9 within the main filter 6, and when the rotary shaft 9 is rotated, it impacts the inner surface of the main filter 6 to remove dust.

Reference numeral 13 denotes a gasket fixed to the free end of the prefilter, and the free end of the prefilter is attached to the front case 2 of the main body.
When brought into contact with the inner bottom surface of the holder, it maintains airtightness between the two.

Reference numeral 14 denotes a spring inserted between the filter case 8 and the operating knob 11, which functions to constantly press the prefilter against the filter case 8 side.

When the front case 2 of the main body is connected to the rear case 3 of the main body, the operation knob 11 is pushed by the protrusion 15 protruding from the rear case 3 side of the main body, and the free end of the pre-filter flap is connected to the front case 2 of the main body. When the front case 2 of the main body is removed from the rear case 3 of the main body, the prefilter leaf moves to the right due to the return force of the spring 14, and the free end of the prefilter leaf and the front case 2 of the main body are brought into contact with the inner bottom surface. The connection with the inner bottom surface is separated.

Therefore, when the main body front case 2 and main body rear case 3 are connected, the free end of the pre-filter leaf comes into contact with the inner bottom surface of the main body front case 2, so air from the suction port 5 flows into the free end surface side of the pre-filter leaf. Moreover, when the main body front case 2 and the main body rear case 3 are not connected, the free end of the pre-filter is separated from the inner bottom surface of the main body front case 2, making it extremely easy to rotate the rotating shaft 9 during dust removal. It is what it is.

Reference numeral 16 denotes a circumferential rib provided on the filter case 8, which is provided so that the pre-filter frame 7a is located on the inner periphery, and whose height is greater than the moving distance of the pre-filter frame, so that the filter case 8 and the pre-filter Dust is prevented from entering through the gap with the frame 7a.

17 is a filter gasket for airtightly attaching the filter case 8 to the front case 2 of the main body, and 18 is a fan motor, which is connected to the cord reel 1 via anti-vibration rubber (not shown) or the like.
9 and is disposed at an appropriate position within the rear case 3 of the main body.

Reference numeral 20 denotes an exhaust port formed at a predetermined position at the rear of the rear case 3 of the main body.

Here, the operation of the present invention will be explained.

When the filter case 8 is attached to the main body front case 2 and set in the main body rear case 3, the operation knob 11 is pushed by the protrusion 15 provided on the main body rear case 3, and the prefilter 7 is moved to the suction port 5 side ( left), and the gasket 13 at the free end comes into contact with the surface of the main body front case 2.

When the fan motor 18 is driven, the dust that has passed through the suction port assembly (not shown) connected to the front case 2 of the main body enters the front case 2 of the main body through the suction port 5, and relatively coarse dust is removed from the main body front case 2. The fine dust that is filtered by the filter and passed through the pre-filter is captured by the main filter 6, and only clean air passes through the inside of the main filter 6 to cool the fan motor 18, and then is discharged to the outside from the exhaust port 20. be done.

Therefore, when performing the dust removal process after cleaning, first divide the main body front case 2 and main body rear case 3 into two from the center, and then the pre-filterf attached to the filter case 8 in the main body front case 2 The spring 14 pushes back toward the filter case 8 side, and the gasket 1 at the free end
3 will come off from the inner bottom surface of the front case of the main body.

After that, when the operating knob 11 is rotated, the dust-removing vibrator 12 and the pre-filter filter attached to the rotating shaft 9 rotate simultaneously, and the vibrator 12 is connected to the main filter 6.
At the same time as the dust removal operation is carried out, coarse dust stuck around the prefilter is removed by rotation of the prefilter.

In this invention, as described above, when the front case of the main body is removed from the rear case of the main body, the free end of the pre-filter is separated from the inner bottom surface of the front case of the main body, so the rotating shaft rotates and performs the dust removal operation. This has the remarkable effect that the rotation of the vibrator and prefilter can be lightened when cleaning, making it extremely easy to remove dust.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of the vacuum cleaner of the present invention, Figure 2 is an enlarged sectional view of the front case of the vacuum cleaner, and Figure 3 is a side sectional view of the filter assembly used in the vacuum cleaner. shows.

Claims (1)

[Scope of utility model registration request] The front case and the rear case of the main body can be divided into two, and the main filter is attached to the filter case that can be detachably attached to the opening of the front case of the main body.
A rotating shaft passes through the center of the main filter, and a cylindrical pre-filter is fixed to the tip of the rotating shaft with an appropriate gap between the main filter and the main filter. A vacuum cleaner is provided with a vibrator that impacts the inner surface of the main filter by rotation of a rotating shaft, and collects dust sucked in through the plate opening on the outer peripheral wall of the pre-filter when an electric blower is driven. When the main body front case and the main body rear case are connected, the free end of the prefilter contacts the inner bottom surface of the main body front case, and when the main body front case and the main body rear case are not connected, the free end of the prefilter contacts the inner bottom surface of the main body front case. This vacuum cleaner is characterized by having a pre-filter moving mechanism so that the pre-filter can be removed from the inner bottom surface of the front case of the main body.