JPS6018202Y2 - vacuum cleaner - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a vacuum cleaner.

First, FIG. 1 shows an example of a conventional vacuum cleaner.

Reference numeral 1 denotes a main body case in which an electric chamber 3 for housing an electric blower 2 and an exhaust hole 4 are formed, and a dust case 5 is detachably attached to this main body case 1 with a clamp 6.

This dust case 5 has a suction lower and a dust collection chamber 8 formed therein.

In the dust collection chamber 8, a filter frame 9 and a holding plate 10 are sealed between the inner peripheral surface of the dust collection chamber 8 and a partition wall 12 on the suction side of the main body case 1 by a backing 11 fitted to their peripheral edges. It is inserted.

A dust removal body 13 is rotatably held on the holding plate 10.

The filter frame 9 has a rectangular tube shape, and a secondary filter 14 and a tertiary filter 15 are housed therein.

A primary filter 16 is provided on the outer circumference of the filter frame 9 on the suction side.
are fitted into each other, and a locking portion 17 is formed at the fitting portion of the two, which is a concave and convex portion that locks the two in a removable manner.

Moreover, the upper part of the primary filter 16 has a handle 1 that protrudes upward.
8 is provided.

When removing dust from the tertiary filter 15, it is done by rotating the dust remover 13, but when removing dust completely including the primary filter 16 and secondary filter 14, the filter frame is removed from the dust collection chamber 8. 9, it is necessary to pull the handle 18 to remove the primary filter 16 from the filter frame 9, and to take out the secondary filter 14 and the tertiary filter 15.

When the handle 18 is enlarged, the space 1 between it and the inner surface of the dust collection chamber 8 increases.
9 and dust accumulates therein, so it cannot be made very large, and it is difficult to disassemble the primary filter 16.

Even if the size of the handle 18 is limited, the gap in the space 19 is 5 to 1
077171 and garbage will accumulate.

Therefore, as shown in FIG. 2, there is a drawback that the dust 20 on the handle 18 and the upper surface of the filter frame 9 is carried out and scattered when the filter frame 9 is pulled out from the dust collection chamber 8.

Note that the backing 11 seals between the inner peripheral surface of the dust collection chamber 8 and the partition wall 12 of the main body case 1, but it is extremely difficult to seal different surfaces at the same time, and the backing 11 is also difficult to make. It is.

This idea was developed in view of the above points, and it allows for easy separation of the primary filter, prevents dust from accumulating on the top surface of the filter frame, and prevents dust from scattering when the filter frame is removed. The object of the present invention is to provide a vacuum cleaner that can prevent dust from adhering to the operation recess of the primary filter and staining hands as a result of this.

An embodiment of this invention will be described based on FIGS. 3 and 4.

Components that are the same as those described in FIGS. 1 and 2 are designated by the same reference numerals, and description thereof will be omitted.

This embodiment uses a dust case 21 in which a compression plate 22 is biased in the return direction by a spring 23 and is movable up and down.

The filter frame 9 and the holding plate 10 are kept airtight with the inner circumferential surface of the dust collection chamber 8 by a backing 24 fitted into their circumferences, and the holding plate maintains airtightness with the partition wall 12 of the main body case 1. This is maintained by fitting a backing 26 to an annular rib 25 formed in the holder 10.

Therefore, each different side has its own backing 24
26, the sealing performance is reliable, and the dimensions of the backings 24 and 26 can be easily controlled and manufactured.

The primary filter 16 is made of elastic plastic, and has a fitting 27 that is elastically fitted to the inner surface of the filter frame 9 on the suction side, as shown in FIG.

A locking portion 17 is formed by a recess 28 and a protrusion 29 on the upper and lower surfaces of the fitting surface of the fitting 27 and the filter frame 9.

Notches 3 located between the recesses 28 on the upper surface of the filter frame 9
0 is formed.

An operation recess 31 is formed in the upper part of the suction side surface of the primary filter 16 so that the upper part of the fitting 27 can be bent in the diameter reduction direction by inserting the hand.

Further, a protrusion 32 is formed on the upper surface of the fitting object 27 to fit into a notch 30 in order to keep the upper surface of the filter frame 9 smooth when the primary filter 16 and the filter frame 9 are fitted together. ing.

Further, a shielding portion 33 that covers the operation recess 31 is formed on the compression plate 22 .

In such a configuration, by driving the electric blower 2, outside air containing dust is sucked in from the suction lower and purified by the filters 16, 14, 15, thereby collecting dust and dust in the dust collection chamber 8.

When the compression plate 22 is pressed, the dirt and dust in the dust collection chamber 8 is compressed.

When discarding dust, operate the clamp 6 to separate the dust case 21 from the main case 1 and pull out the filter frame 9 from the dust case 21.
Handle 1 for separation from filter frame 9 as shown in the figure
8 is not required, the upper surface of the filter frame 9 is connected to the dust collection chamber 8.
It can be brought into close contact with the upper inner surface of the

Therefore, no dust accumulates on the upper surface of the filter frame 9, and the dust accumulated on the upper surface does not spill out to the outside of the dust case 21 when the filter frame 9 is pulled out.

In this embodiment, there is a space between the top surface of the filter frame 9 and the upper inner surface of the dust collection chamber 8, but since the shielding part 33 prevents dust from being sucked into the gap, when the filter frame 9 is removed, The dust on the top surface will not spill outside.

To remove the primary filter 16, insert your thumb into the operation recess 31 and press the primary filter 16% protrusion 32 with your other fingers to bend the fitting 27 in the direction of diameter reduction, and release the locking part 17 on the top surface. , the primary filter 16 is rotated toward the suction side using the locking portion 17 on the lower surface as a fulcrum, and then the primary filter 1
6 is lifted, the locking part 17 on the lower surface is also released. At this time, the operation of pushing the protrusion 32 to reduce the diameter of the fitted object 27 can be performed by a natural operation of grasping something that easily generates grip force, so the primary filter 16 is Separation work is easy.

Furthermore, since the operation recess 31 is covered with the shielding part 33 of the clamping plate 22 during cleaning, no dust adheres to it, and therefore, the hands do not get dirty.

At the time of assembly, simply by press-fitting the fitting 27 of the primary filter 16 into the filter frame 9, the locking portion 17 is elastically fitted.

In addition, as shown in FIG. 5, a rib 34 may be formed in the operation recess 31 to connect its bottom and the lower surface of the fitting 27.

This strengthens the fitting 27 and prevents permanent deformation.
The airtightness of the fit between the primary filter 16 and the filter frame 9 can be improved.

This idea consists of forming a primary filter made of an elastic material and having a fitting part inserted into the inner surface of the filter frame on the suction side of the filter frame, and inserting your hand into the position close to the locking part of the primary filter. Since the filter frame has an operation recess that can be easily removed, the primary filter can be easily attached and removed without increasing the external size of the filter frame. Since a shielding part is formed to cover the suction side of the space formed by the inner surface of the dust case, it is possible to prevent dust from entering the top surface of the filter frame, thereby making it difficult for dust to accumulate on the top surface of the filter frame. It is possible to prevent dust from adhering to the operation recess and soiling of hands.

[Brief explanation of the drawing]

Fig. 1 is a partially cut-away side view showing a conventional example, Fig. 2 is a vertical sectional side view of the dust case when the dust is being disposed of, and Fig. 3 is a partially cut-away side view showing an embodiment of this invention. 4 is a partially cutaway exploded perspective view of the primary filter and filter frame, and FIG. 5 is a partially cutaway exploded perspective view showing a modified example of the primary filter and filter frame. 2...Electric blower, 3...Electric room, 8
... Dust collection chamber, 9 ... Filter frame, 14
...Secondary filter (filter), 15...
...Tertiary filter (filter), 16...Primary filter, 22...Compression plate, 27...
Fitting portion, 31... Operation recess, 33...
Shielding part.

Claims (1)

[Scope of utility model registration request] A main body case in which an electric blower is housed is provided, a dust case having an opening on the main body case side is detachably attached to the main body case, and a cylindrical filter frame for storing a filter is detachably attached to the open side of the dust case. A primary filter is formed of an elastic material, and has a fitting part that is elastically fitted to the suction side of the filter frame by locking a locking part to the inner surface of the filter frame. An operation recess is formed at a position close to the locking part and is large enough to insert a hand into the suction side surface of the filter, and the dust case is reciprocated in that direction on the surface of the second filter to compress dust. A compression plate is provided, and the compression plate is provided with a shielding portion that covers the front surface of the operation recess at the return position of the compression plate and also covers the suction side of the space formed by the upper surface of the filter frame and the inner surface of the dust case. A vacuum cleaner characterized by: