JPS6129409Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to a vertical vacuum cleaner.

[Conventional technology]

Conventionally, in this type of vertical vacuum cleaner, a pre-filter on the lower side and a main filter on the upper side are inserted through the opening into a cylindrical dust collection case with an open top. A main case equipped with an electric blower is placed above the opening of the case, and dust sucked in from the intake port on the peripheral wall of the dust collection case is filtered by a pre-filter and collected at the bottom of the dust collection case, and the dust is removed from the pre-filter. The structure is such that the fine dust that passes through is captured by the main filter.

In this case, the prefilter is integrally provided with a dust reservoir for collecting fine dust captured by the upper main filter, and the bottom plate of this dust reservoir constitutes a lid that opens downward.

Therefore, when disposing of dust, first drop the fine dust removed from the main filter into the dust reservoir of the pre-filter, then open the bottom plate of the dust reservoir downward and let the fine dust fall into the dust collection case. The dust captured by the prefilter and the fine dust can be disposed of at the same time.

However, with the above-mentioned configuration, when disposing of dust, the operation of dropping the fine dust accumulated in the dust reservoir into the dust collection case is time-consuming and dirty, and the disadvantage is that the prefilter does not have a dust reservoir. Not only that, but also the bottom plate must be able to be opened and closed, which has the disadvantage of complicating the structure and increasing the number of parts.

By the way, in a conventional vacuum cleaner, the dust captured by the pre-filter and the main filter can be discharged at the same time, thereby simplifying dust disposal.
There is one shown in Publication No. 35190.

This is a horizontal vacuum cleaner that is equipped with a through hole on the top surface, a filter net on the side surface, and a rising part around the edge of the through hole, while the through hole is closed by wind pressure to form a fine dust chamber. A primary filter is provided with a fine dust receptacle that is pivoted to open the through hole by its own weight, a secondary filter located above the primary filter, and a secondary filter located between the two filters that collects the fine dust captured by the secondary filter. It is equipped with a guide to guide the person to the room.
However, in this case, like the vertical vacuum cleaner mentioned above, the structure of the primary filter becomes very complicated.
Furthermore, a guide is especially required to guide the fine dust removed from the secondary filter to the fine dust chamber, which has the disadvantage of increasing the number of parts and increasing the cost.

Furthermore, as other conventional technology,
There is a filter unit shown in Japanese Patent No. 10773, in which a filter unit having a pre-filter and a main filter is fitted into the rear opening of the dust collection case of a horizontal vacuum cleaner, and the main filter is attached to the lower end of the pre-filter frame. In addition to providing a pocket located directly below the main filter to collect fine dust that has fallen from the main filter, the dust outlet at the end of this pocket is closed with a lid that opens outward, and a protrusion is provided on the inside of the dust collection case to press the lid from the outside. It is set up.

However, with this method, if you want to discharge the fine dust that has fallen from the main filter after collecting it in the pocket, you need to turn the rear opening of the dust collection case separated from the blower case upwards, and then pull out the filter unit in this state. This requires not only a pocket part to be formed in the pre-filter frame, but also a cover for the dust outlet.
This method has drawbacks such as a complicated structure, and it is also possible to apply it to a vertical vacuum cleaner.

[Problem that the invention attempts to solve]

Therefore, in this invention, keeping in mind the above points, in a vertical vacuum cleaner in which a pre-filter and a main filter are arranged in a cylindrical dust collection case with an open top surface, a simple structure is provided that allows the filter to be placed above the pre-filter. The fine dust removed from the main filter of
It is an object of the present invention to provide a means for dropping the main filter to the bottom of the dust collection case simply by lifting it.

[Means for solving problems]

This invention consists of a cylindrical dust collection case with an open top, a pre-filter on the lower side and a main filter on the upper side inserted through the opening and arranged inside the dust collection case, and a main filter on the upper side of the dust collection case. In the vertical vacuum cleaner, the main filter is configured in a cylindrical shape having a bottom plate, and the pre-filter is configured as a central substrate supported by the bottom plate. and two supporting frames connected to each other via hinges on both sides of the board and bent downwards with respect to the board, and a mesh section attached to both supporting frames, and inside the dust collection case. Further, a locking body is provided which extends both of the support frames upward to make the mesh portion flush with the base plate.

[Effect]

Therefore, in the vacuum cleaner of this invention, the fine dust that passes through the prefilter and is captured by the main filter falls onto the prefilter during dust removal, but when removing dust, the main case must be removed from the top opening of the dust collection case. Afterwards, when the main filter is lifted from the top opening of the dust collection case, the prefilter board supported by the bottom plate is lifted together with the main filter, bent downward using the hinges of both support frames of the prefilter as fulcrums, and the board on the prefilter is lifted up. Fine dust is dropped into the bottom of the dust collection case.

〔Example〕

Next, this invention will be explained in detail with reference to drawings showing embodiments thereof.

First, FIGS. 1 to 3 showing one embodiment will be explained.

1 is a bottomed cylindrical dust collection case with an open top; 2
is an intake port formed at the bottom of the peripheral wall of the dust collection case 1,
Reference numerals 3 and 4 are front wheels and rear wheels of the dust collection case 1, and reference numeral 5 is a locking body consisting of two rods arranged horizontally in parallel within the dust collection case 1.

6 is a cylindrical main filter supported by the bottom plate 7 and the upper frame 8; 9 is a dust removal handle rotatably attached to the center of the bottom plate 7; 10 is a rotary shaft 11 of the handle 9 below the bottom plate 7; A fixed rotating frame, 12 a fine dust fall port formed in the rotating frame 10, 13 a plurality of columns erected on the outer periphery of the rotating frame 10, 14 an inwardly extending upper end of the column 13; This is a dust remover made of an elastic body such as a coil spring.

15 is a prefilter, and a board 16 in the center
It is composed of two substantially semi-circular support frames 18 connected to both sides of the base plate 16 via hinges 17, and a mesh part 19 attached to each support frame 18, so that no external force acts on it. In this state, as shown in FIG.
By bending downward using the support frame 18 as a fulcrum and supporting the support frame 18 from below, both mesh portions 19 are attached to the substrate 16.
The base plate 16, hinge 17, and support frame 18 are integrally formed of synthetic resin. Furthermore, substrate 1
6 is rotatably attached to the rotating shaft 10 of the handle 9,
In addition, it is supported in a manner that prevents it from coming off.

Reference numeral 20 denotes a gasket fitted to the periphery of the upper frame 8. This gasket 20 is placed on the opening edge of the dust collection case 1, and the main filter 6 on the upper side and the prefilter 15 on the lower side are connected to the dust collection case 1. will be decorated. At this time, both support frames 18 of the prefilter 15
are extended in contact with the locking body 5, and the first
As shown in the figure, it becomes a flat plate.

21 is a main body case with a built-in electric blower 22;
23 is a power switch provided on the main body case 21, 24 is a power cord, and 25 is a power switch provided on the main body case 21, which is placed on the opening of the dust collecting case 1.
It is a clamp hook to be clamped to.

Next, the operation of the above embodiment will be explained.

Figure 1 shows the state in which dust collection is used, and the electric blower 2
2, the dust sucked in from the intake port 2 is filtered by a prefilter 15 and collected at the bottom of the dust collection case 1, and the fine dust that has passed through the prefilter 15 is captured by the main filter 6.

Next, when disposing of dust, use clamp hook 2.
5 to remove the main filter case 21 and turn the dust removal handle 9, the rotation frame 10 rotates and the dust removal element 14 is removed from the main filter 6 via the support 13.
The main filter 6 is vibrated by repelling it, and the fine dust adhering to the main filter 6 is removed. This fine dust is removed from the outside of the rotating frame 10 or from the fine dust falling port 12.
and falls onto the prefilter 15.

Next, as shown in FIG. 2, when the upper frame 8 is lifted and the main filter 6 is lifted, the board 16 of the prefilter 15 is simultaneously pulled up, and both support frames 18 are bent from the hinge 17 relative to the board 16 and restored. Then, the fine dust on the prefilter 15 naturally falls into the dust collection case 1. After that, the dust in the dust collection case 1 is thrown away.

Next, place the prefilter 1 into the dust collection case 1.
5. When setting the main filter 6, insert them through the top opening of the dust collection case 1.
The support frame 18 of the prefilter 15 comes into contact with the locking body 5 and is further guided by the locking body 5 to extend, and becomes flat when the setting is completed.

In addition to the above-mentioned rod, the locking body 5 can be
As shown in FIG. 4A, a protrusion 26 may be formed on the inner surface of the dust collection case 1, and as shown in FIG.
7 may be attached with screws 28.

[Effect of idea]

As described above, according to the vacuum cleaner of this invention, by simply lifting the main filter when disposing of dust, the support frame of the pre-filter is automatically bent downward relative to the board, and the dust is removed from the main filter and the pre-filter is removed. The fine dust that has fallen on top can be allowed to fall naturally to the bottom of the dust collection case without any separate treatment, making dust disposal extremely simple and hygienic.Moreover, the prefilter itself can be bent. This eliminates the need for a structure such as forming a fine dust reservoir in the prefilter and making the bottom part freely openable and closable, and the structure becomes extremely simple.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view of one embodiment of the vacuum cleaner of this invention, Fig. 2 is a cutaway side view with the main filter etc. of Fig. 1 removed, and Fig. 3 is a perspective view of the pre-filter of Fig. 1. 4A and 4B are sectional views showing other examples of the locking body in this invention. DESCRIPTION OF SYMBOLS 1... Dust collection case, 5... Locking body, 6... Main filter, 15... Prefilter, 16... Board, 17... Hinge, 18... Support frame, 19... Mesh part, 26... Protrusion, 27...hit body.

Claims (1)

[Scope of utility model registration request] A cylindrical dust collection case with an open top surface, a lower pre-filter and an upper main filter inserted through the opening and arranged in the dust collection case, and a main filter placed on the opening of the dust collection case. In a vertical vacuum cleaner consisting of a main body case equipped with an electric blower, the main filter is configured in a cylindrical shape having a bottom plate, and the prefilter includes a central substrate supported by the bottom plate, and the substrate. consists of two support frames that are connected to each other via hinges on both sides of the board and are bent downward with respect to the board, and a mesh section that is attached to both of the support frames, and that the dust collection case is provided with the A vacuum cleaner is provided with a locking body that extends both support frames upward to make the mesh portion flush with the base plate.