JPS6226770B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filter device for a vacuum cleaner,
The purpose is to simplify dust removal operations, improve efficiency, and prevent spring breakage.

Conventional manual filter devices, which are made by forming a cylindrical piece of material into a frame and removing dust by hand, remove dust by rotating the dust remover in only one direction. It was labor-intensive as it required many turns of the body.

In order to solve this problem, the inventors installed a spiral spring or the like between the filter device and the dust remover.
We have developed a device that removes dust by rotating the dust remover by hand and winds up the above-mentioned spring, and then uses the accumulated force of this spring to reverse the movement and remove dust, thereby reducing the number of times the dust is removed. There is no problem when it is used, but if the dust remover is rotated in the opposite direction, there is a risk that the spring may break.

The present invention solves the above-mentioned conventional drawbacks, and its structure and operation will be explained below based on the drawings.

In the figure, 1 is a main body with a built-in electric blower 2, and a removable dust collection box 3 is provided at the front of the main body 1.
is provided. A filter device 4 and a pre-filter 5 are installed inside the dust collection box 3. The filter device 4 is formed by bending a material 6 into a corrugated cross-sectional shape, forming the folded lines substantially radially, and integrally forming the frame body 7 made of resin.

The frame body 7 is composed of an inner frame 7a and an outer frame 7b,
It is made of a material such as resin and is cut out along the shape of the material.
Reference numeral 9 denotes a biprator that is inserted into the trough of the material 6 to vibrate the material 6, and 10 is a shaft integrally formed in the center of the inner frame 7a. 11 and a reversing plate 12 are fitted. The dust removing body 11 and the reversing plate 12 are provided with clutches 11a and 12a at their joints, and are engaged and rotated together in one rotational direction, and are disengaged in the reverse rotational direction. It is designed so that it does not rotate integrally. 13 is the shaft portion 1
The dust remover body 11 is pressed toward the reversing plate 12 side by the clutch spring wound around 0, and the clutch 11a,
12a is biased in the direction of engagement. A washer 14 prevents the dust remover 11 and the clutch spring 13 from coming off the shaft 10, and is fixed to the tip of the shaft 10 with a screw 15.

Reference numeral 16 denotes a spring body such as a spiral spring, which is wound around the shaft portion 10 and positioned between the bottom of the inner frame 7a and the reversing plate 12. One end is connected to the locking portion 17 provided on the inner frame 7a, and the other end is connected to the locking portion 17 provided on the inner frame 7a. are engaged with locking portions 18 provided on the reversing plate 12, respectively.

A dust removing body 19 is provided on the dust removing body 11 and vibrates the vibrator 9 by contacting the vibrator 9 and repelling the vibrator 9 in any direction of rotation. In this configuration, the dust removing body 19 is formed of a coil spring and is configured to come into elastic contact with the vibrator 9. 20 is the dust removal body 11 mentioned above.
This is a knob that is gripped to rotate the dust remover body 11, and is integrally formed with the dust remover body 11.

In the above configuration, the air containing dust sucked in from the suction port (not shown) is separated from the dust by the filter device 4 of the dust collection box 3, and the clean air is sucked into the electric blower 2 and exhausted from the main body 1. .

In order to remove dust to prevent clogging of the filter device 4, it is sufficient to rotate the dust remover 11, which causes the dust remover 19 to vibrate the vibrator 9', thereby removing dust. At the same time, the reversing plate 12 is rotated via the clutches 11a and 12a, and the spring body 16 is wound up. When the spring body 16 is tightened, when you release your hand from the dust remover body 11, the reversing plate 12 rotates in the opposite direction due to the force of the unwinding of the coiled spring body, and the clutches 11a and 12a are rotated. Via, dust remover body 11
The dust removal body 19 also rotates, so the vibrator 9
is vibrated to remove dust from the filter device 4. Also,
When the dust remover 11 is operated in the reverse direction, the clutch spring 13 is compressed and the clutches 11a and 12a are opened, so only the dust remover 11 rotates, the dust remover 19 vibrates the vibrator 9, and the clutch 11a , 12a due to the vertical vibration that occurs each time the filter device 4
is vibrated comprehensively to remove adhering dust.

As is clear from the above description, the feature of the present invention is that in the dust removal operation of the filter device, the dust remover 11 is reversed, and when the dust remover 11 is reversed, the clutch 11a,
12a is in an open state to prevent the spring body 16 from bending and to impart longitudinal vibration to the entire filter device.

Moreover, by reversing the dust remover body 11, the number of manual dust removal operations is reduced and the dust removal operation is simplified, and the speed when the dust remover body 11 is reversed is faster than the speed when the spring body 16 is wound. As a result, the vibration obtained during dust removal is different,
This increases the dust removal effect.

Furthermore, when the dust removing body 11 is reversed, the clutches 11a and 12a compress the clutch spring 14 to be in the open state, which prevents the spring body 16 from bending and generates longitudinal vibrations that pass over the pawls of the clutches 11a and 12a, causing filter Since the entire device is vibrated, the dust removal effect is enhanced.

In this configuration, the vibrator 9 is vibrated by the dust removal body 19 to remove dust from the filter, but the same effect can be obtained by vibrating the dust removal body directly against the material of the filter device.

Further, in FIG. 4, the spring body 16' is formed of a coil spring, and this spring body 16' is bent in the axial direction and brought into contact with the reversing plate 12', and the clutch spring 13 in the previous embodiment is omitted. Then, the spring body 16' moves the reversing plate 12' and the dust removing body 11'.
are joined together.

As described above, according to the present invention, the number of manual dust removal operations is reduced, the dust removal effect can be improved by changing the dust removal speed, and moreover, the dust removal does not cause problems such as spring breakage. The clutch, in particular, has great industrial value, as it vibrates the entire filter to improve the dust removal effect.

[Brief explanation of the drawing]

Fig. 1 is a side view of the vacuum cleaner of the present invention, Fig. 2 is a sectional view of the filter device, Fig. 3 is an exploded perspective view of the filter device, and Fig. 4 is the filter when the spring body is constructed of a coil spring. FIG. 2 is a cross-sectional view of the device. 4... Filter device, 6... Material, 10...
Shaft part, 11, 11'... Dust removing body, 11a, 1
2a...Clutch, 12, 12'...Reversing plate, 1
6, 16'... Spring body, 19... Dust removing body, 20...
…Knob.

Claims (1)

[Claims] 1. A filter device formed into a cylindrical shape by bending a material into a corrugated cross-section, a dust remover that rotatably fits into a shaft provided at the center of the filter device, and has a knob for rotation; a dust removing body that is provided on the dust removing body and vibrates the filter by directly or indirectly contacting the material of the filter device;
Wrapped around the shaft, one end is a filter device,
A vacuum cleaner comprising a spring body whose other end is locked to a reversing plate rotatably fitted to a coaxial part, and a clutch formed on the reversing plate and the dust remover and engaged only in one rotational direction.