JPS6052815B2 - vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] The present invention improves dust removal from the filter section during dust treatment,
The purpose is to perform sanitary dust treatment.

Recently, in order to improve the separation of dust when disposing of dust, a structure has been considered in which the pre-filter is rotated and the dust on this pre-filter is separated and disposed of. There is a concern that a new problem will arise in that the prefilter will be pushed by the pushing force and the rotation of the prefilter will become very heavy.

In addition, since the pre-filter rotates and the dust on the pre-filter is separated by the ribs of the dust box, dust accumulates around the ribs of the dust box, causing the dust to be scattered and reducing the dust collection capacity. This was also a problem. The present invention solves the above-mentioned conventional nine colors, and one embodiment thereof will be described below based on FIGS. 1 to 4.

In the figure, 1 is the main body of the vacuum cleaner, 2 is an electric blower built into the main body 1, 3 is a rear wheel, 4 is a front wheel, 5 is a storage container connected to the main body 1, and 5a is a hose (not shown). figure)
6 is a handle for transporting the storage container 5; 7 is an air intake port for connecting the
is a buckle for attaching and detaching the main body 1 and the holding container 5; 8 is the holding container 5;
This support frame supports a tightening rubber 9 for air-tighting the main filter 10 and the main filter 1, and a bearing Ba is formed on this support frame 8 to support a rotating shaft 10b formed integrally with the front frame 10a of the main filter 10. has been done.

8b is a ventilation hole formed in the support frame 8, 11 is a rotating shaft 10b
A gear attached to the other end, 12, is interlocked with the rotation of a cord reel (not shown), meshes with a clutch 13 that transmits only one rotational direction, and transmits the driving force to the gear 11, and 15 is a bearing Ba. The main filter 10 fixed to
16 is a dust-tight packing, and a rib 1 protrudes from the rear frame 10c of the main filter 10.
It is press-fitted into the outer periphery of the support frame 8 and rotatably pressed against the support frame 8 to maintain airtightness.

Reference numeral 17 denotes a pre-filter that separates coarse dirt and fine dust.The outer periphery of this prefilter is in contact with the inner circumference of the coarse dirt tight packing 19 attached to the edge of the opening at the tip of the filter cover 18. prevent intrusion.

A compression coil spring 20 is fixed to the prefilter 17 and the main filter 10, so that the main filter 10 and the prefilter 17 rotate together.

5b is a dust chamber located in front of the pre-filter 17.

In the above configuration, when the cord is pulled and the cord reel is rotated, the gear 11 is rotated, or the main filter 10 is rotated by removing the dust box 5 from the main body 1 and rotating the gear 11 by hand, and at the same time the compression coil spring is rotated. 20
The pre-filter 17 also rotates via. Here, when the pre-filter 17 rotates with the compression coil spring 20 as the rotation axis, the pre-filter 17 is generally not perfectly balanced, and since the axis is an elastic body of the compression coil spring 20, the pre-filter 17 moves in a circular motion. Instead, it becomes a rocking motion as shown in Figure 4. Due to this rocking motion, the debris on the front surface of the pre-filter 17 is compressed alternately, creating a gap between the debris and the front surface of the pre-filter 17. Therefore, the debris attached to the pre-filter 17 is , which is separated from the pre-filter 17 by being blown away. Also, the volume of the dust chamber 5b is normal! However, when garbage accumulates due to long-term use of the vacuum cleaner, the pre-filter 17 moves by the compression amount of the compression coil spring 20, and the volume of the dust chamber 5b increases by the distance L2. It becomes the volume.

When the main filter 10 is rotated manually or automatically in this state, the pre-filter 17 undergoes a rocking motion, and the debris is separated from the front surface of the pre-filter 17 in the same way as in the normal state. The cord pulling force or the manual rotation force of the gear 11 for this purpose may be a stable force that is approximately the same as the force when there is little garbage. Furthermore, as described above, the debris adhering to the front surface of the pre-filter 17, which increases ventilation resistance, is removed when the cord is pulled out, so that cleaning can always be performed with a high air volume.

Incidentally, fine dust adhering to the entire circumference of the main filter 10 and increasing the ventilation resistance is removed by beating the folds by the dust remover 15. As described above, according to the present invention, since the coarse dust adhering to the pre-filter is peeled off by the rocking motion of the pre-filter, cleaning can be always performed in a good state without clogging and maintaining the initial performance. .

In addition, since the pre-filter is oscillated by an elastic body such as a compression coil spring, it is possible to prevent the rotational force of the pre-filter from increasing due to the increase in debris during long-term use, and the cord pulling force or manual rotational force is always constant. can be maintained and has good usability.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a vacuum cleaner according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the same when the vacuum cleaner is full, Fig. 3 is an exploded perspective view of the filter device, and Fig. 4 is the main filter. FIG. 3 is a side view showing the movement state of the prefilter. 5b... Dust collection chamber, 10... Main filter, 17... Pre-filter, 20... Compression coil spring.

Claims (1)

[Claims] 1. A main filter that captures fine dust and is rotated by a rotational drive source, a filter cover that surrounds this main filter and has a packing attached to the edge of the opening on the intake side, and a rotating filter that As well as being able to freely locate
A vacuum cleaner comprising a disk-shaped pre-filter for capturing coarse dust whose outer periphery touches the inner periphery of a packing, and an elastic body such as a compression coil spring that connects the main filter and the pre-filter.