CN1103575C - Small size electric dust collector - Google Patents

Abstract

Provided is a small electric vacuum cleaner in which the wheels protrude from the rear of the main body of the vacuum cleaner, and the center of gravity of the main body of the vacuum cleaner can be moved to the side of the suction tool for the floor with a relatively light operating force. Since the suction tool for the floor is in contact with the floor surface, it can Improve suction performance. It has a dust collector (25) and an electric blower (26) inside, and a vacuum cleaner main body (21) with a suction port (22) at the front, an exhaust port (23) at the rear, and a handle (24) at the upper part of the rear , the floor suction tool (27) detachably installed on the aforementioned suction port (20) and the wheels (31) behind the front-speed vacuum cleaner main body (21), the wheels (31) can be placed on the vacuum cleaner main body ( 21) on the underside of free haunting.

Description

small electric vacuum cleaner

technical field

The invention relates to a main body of a hand-held small electric sweeper (dust collector).

Background technique

Fig. 10 is a side view of a conventional small-sized electric vacuum cleaner shown in, for example, Japanese Patent Application Publication No. 8-228968, and Fig. 11 is a side view of a conventional electric vacuum cleaner shown in Japanese Patent Publication No. 30-5374, for example. Enlarged view of part.

In Figure 10, 1 is a small electric vacuum cleaner, 2 is the main body of the vacuum cleaner, with a suction port 3 at the front, an exhaust port 4 at the rear, and a handle 5 at the top. 6 is a paper bag filter for dust collection, etc. Body, 7 is an electric blower, and they are contained in the vacuum cleaner main body 2 respectively. 8 is a suction tool for the floor, which is mounted on the suction port 3 in a detachable manner. In the figure, F represents the cleaning surface.

When cleaning the cleaning surface F, the conventional small electric vacuum cleaner shown in FIG. At this time, the elevation angle α of the main body 2 of the vacuum cleaner generally changes within the range of 30° to 60°. W is the approximate center of gravity position of the vacuum cleaner main body 2, and the direction of the center of gravity (arrow) is also changing due to the change of the elevation angle α. Such an electric vacuum cleaner can clean part of the dirt on the cleaning surface F conveniently and simply by directly holding the main body 2 of the vacuum cleaner.

In FIGS. 11 and 12 , 9 is a vacuum cleaner main body, and 10 is a pry plate formed below the vacuum cleaner main body 9 . 11 is a support arm, which is formed on the skid plate 10 to move up and down. 12 is a wheel, which is mounted on the front end of the support arm 11 in a freely rotatable manner. 13 is the suction pipe positioned at the front of the aspirator main body 9 .

When the conventional electric vacuum cleaner shown in Figures 11 and 12 is cleaning the cleaning surface F, when the cleaning surface F is a carpet, the vehicle 12 is trapped in a carpet and it is difficult to walk. while walking. In addition, when the cleaning surface F is the floor, since the pry plate 10 will damage the floor, the support arm 11 will be moved down and the wheels 12 will be used for walking. In this way, the wheels 12 and the skid plate 10 are used according to the condition of the cleaning surface F. FIG.

In the conventional small-sized electric vacuum cleaner shown in FIG. 10, when holding the handle for sweeping, since wheels are not provided, the weight of the main body of the vacuum cleaner is all added to the hands of the user. For this reason, you will feel tired when cleaning the cleaning surface in a large area. And the wheel shown in Figure 11,12 is formed in the conventional electric vacuum cleaner of vacuum cleaner main body bottom, because the vacuum cleaner main body walks on the cleaning surface, can prevent that weight directly adds to user's hand, but holds the handle on the vacuum cleaner main body top to make the floor When cleaning furniture and the like by pressing the cleaning surface with a suction tool, it is not possible to provide a structure that can easily perform partial cleaning.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems, and to provide a small electric vacuum cleaner. By extending the wheels from the rear of the vacuum cleaner main body, the direction of the center of gravity of the vacuum cleaner main body can be moved to the side of the floor suction tool with a light operation force. Make floor suction tools actually in contact with the floor surface to improve suction performance.

A small electric vacuum cleaner of the present invention comprises: a built-in electric blower, a main body of the vacuum cleaner with a suction port formed on the front and a handle formed on the upper part, a floor suction tool arranged on the suction port, and a The wheels on the rear bottom of the main body of the vacuum cleaner; it is characterized in that the wheels are set to be able to go in and out of the bottom surface of the main body of the vacuum cleaner, and when the wheels stretch out, the center of gravity of the main body of the vacuum cleaner faces the floor for suction Tool side movement.

In the above-mentioned compact electric vacuum cleaner, a wheel support member to which the wheel is attached, and an operation unit for operating the position of the wheel to move in and out of the wheel through the wheel support member are provided.

Further, the wheels are arranged opposite to each other on both sides of the rear of the main body of the vacuum cleaner.

Description of drawings

Fig. 1 is an overall perspective view of a small electric vacuum cleaner according to a first embodiment of the present invention.

Fig. 2 is a perspective view showing the use state of the small electric vacuum cleaner according to the first embodiment of the present invention.

Fig. 3 is a sectional view of main parts of a small electric vacuum cleaner according to a first embodiment of the present invention.

Fig. 4 is an enlarged sectional view of main parts of a small electric vacuum cleaner according to a first embodiment of the present invention.

Fig. 5 is a perspective view of the main part of the first embodiment of the present invention.

Fig. 6 is a perspective view of a rotary operating body according to a first embodiment of the present invention.

Fig. 7 is a perspective view of another rotary operating body according to the first embodiment of the present invention.

Fig. 8 is a perspective view of the whole electric vacuum cleaner according to the second embodiment of the present invention.

Fig. 9 is a perspective view of the main part of the second embodiment of the present invention.

Fig. 10 is a side view of a conventional small electric vacuum cleaner.

Fig. 11 is a side view of another conventional electric vacuum cleaner.

Fig. 12 is an enlarged view of main parts in Fig. 11 .

Detailed ways

Example 1

Next, a first embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG. Fig. 1 is a perspective view showing the whole of the small electric vacuum cleaner of the first embodiment, Fig. 2 is a perspective view showing the use state when the wheels are extended, Fig. 3 is a partial sectional view, and Fig. 4 is an enlarged main part when the wheels are stored 5 is a perspective view of a wheel support member, and FIG. 6 is a perspective view of a rotary operating body. In the figure, arrows indicate the flow of air.

In the figure, 20 is a small electric vacuum cleaner, 21 is the main body of the vacuum cleaner, a suction port 22 is formed at the front part, an exhaust port 23 is formed at the rear part, and a handle 24 is formed at the upper rear part. 25 is formed by a paper bag, a cloth bag, etc. Dust collecting body, 26 is electric blower, and they are contained in the vacuum cleaner main body 21 respectively. 27 is a suction tool for the floor, which is formed by a connecting pipe 28 and a hair-planting brush 29 that are detachably connected to the suction port 22 . Furthermore, the floor suction tool 27 is mounted on the connection pipe 28 so as to be movable up and down (angle γ) and turnably. 30 is a wheel storage portion formed on both sides of the rear of the cleaner main body 21 . 31 is a wheel made of soft material, 32 is a wheel support member, and the wheel 31 is rotatably installed on the support arms 33 formed at opposite ends of the wheel support member 32 . The wheels 31 are respectively attached to the wheel storage portion 30 so as to be retractable. 34 is a compression spring, its lower end is in contact with the rear inner wall 21B below the vacuum cleaner main body 21, and its upper end is in contact with the moving support surface 35 of the wheel support member 32, and pushes the wheel support member 32 up. 36 is a rotary operation The body is formed by the knob 37 protruding from the back 21A of the main body 21 of the cleaner and the moving body 38 inside the main body 21 of the cleaner. The moving body 38 is in the shape of a cam. Through the rotation of the knob 37, when the long part L of the cam contacts the moving supporting surface 35, the wheels 31 extend out of the wheel storage part 30. When the short part h contacts the moving supporting surface 35, the wheels 31 Stored in the wheel storage portion 30. 39 is a guide wall supporting the arm 33 that moves up and down, and 40 is a power switch.

In Embodiment 1 of the above-described structure, when sweeping the cleaning surface, the rotary operation body 36 is rotated so that the wheels 31 are stretched out of the wheel storage portion 30 and placed on the cleaning surface. As a result, the center-of-gravity direction W of the cleaner main body 21 moves only toward the floor suction tool 27 at the angle θ shown in FIG. In this state, by holding the handle 24 and moving it, the cleaning surface can be cleaned. That is, by adding a part of the weight of the cleaner main body 21 to the floor suction tool 27, even if the user does not push the floor suction tool 27, the dust on the cleaning surface can be sucked by the floor suction tool 27. .

In addition, since the wheels 31 are respectively arranged on both sides of the main body 21 of the vacuum cleaner, even when moving on the cleaning surface, its stability is also excellent. Next, when cleaning furniture, tables or electrical products, etc., by operating the rotary operation body 36, the wheels 31 are stored in the wheel storage portion 30, which can prevent the support arm 33 from being damaged by the steps of the aforementioned furniture during cleaning. In addition, in Embodiment 1, the wheels 31 are respectively provided on both sides of the cleaner body 21, but even if only one wheel 31 is provided at the center of the bottom surface of the cleaner body 21, a light operation force can be obtained.

As shown in Figure 6, the rotary operating body 36 is elliptical, but if the polygonal shape shown in Figure 7 is adopted, by increasing the rotation angle of the rotary operating body 36a, the distance that the wheels 31 protrude from the main body 21 of the vacuum cleaner can be adjusted appropriately, so that It is more convenient to use. For example, when the extension distance is adjusted according to the height of the user and the carpet with long hairs and hard hairs is vacuumed, although it is difficult for the floor suction tool 27 to enter the inside of the carpet, it can be operated by rotating The body 36a extends the wheel, and the weight of the cleaner main body 21 is added to the floor suction tool 27, so that the floor suction tool 27 can be pushed onto the cleaning surface, and the dust suction ability of the carpet can be improved.

Example 2

Fig. 8 shows an overall perspective view of the small electric vacuum cleaner of Embodiment 2 in use, and Fig. 9 is a perspective view of a wheel support member. In the figure, the same parts as those in Embodiment 1 are marked with the same symbols, and their descriptions are omitted here. In the figure, 30A is the elongated wheel storage part that is formed on both sides below the cleaner main body 21, and 41 is a rotary shaft that runs through between the two wheel storage parts 30A, and it is rotatably supported in the opposite wheel storage part 30A. 33A is an arm formed at both ends of the rotary shaft 41, and the wheel 31 is attached to the front end of the arm 33A. β is the turning angle of the arm 33A.

In Example 2 with the above structure, when vacuuming the cleaning surface, the arm 33A is rotated to the rear of the cleaner main body 21, and the wheels 31 on both sides are stretched out. In this state, by holding the handle 24 and vacuuming, the same effect as that of the first embodiment described above can be obtained. In addition, although it is also possible to provide a locking mechanism in which the support arm 33A is engaged with the cleaner body 21, when the rotation angle β of the support arm 33A becomes the angle β at which the wheel 31 is located at the rear from the center of gravity of the cleaner body 21, there is no special arrangement. The arm 33A is not returned to the side of the wheel storage portion 30A even during vacuuming of the lock mechanism or the like.

Since the present invention arranges the wheels freely under the main body of the vacuum cleaner, the vehicle can be stored when vacuuming furniture etc. and the wheels can be stretched out when vacuuming a wide range of flat cleaning surfaces, which can be very convenient. Clean up.

In addition, when the wheels are extended from the main body of the cleaner, the direction of the center of gravity of the main body of the cleaner is moved to the front of the main body of the cleaner and to the side of the suction tool for the floor, so that the suction tool for the floor can be surely brought into contact with the cleaning surface, and the cleaning surface can be maintained. Improve suction performance.

In addition, since the wheel support member can be operated by the operation part to adjust the position of the wheel in and out of the vehicle, it can be used conveniently according to the height of the user. In addition, in the case of long-piled carpets or high-strength carpets, the wheel can be protruded from the main body and the weight of the cleaner main body can be added to the suction tool for the floor, so that the cleaning surface can be reliably cleaned.

Furthermore, since the wheels are arranged on both sides of the rear bottom of the main body of the vacuum cleaner, the stability can be maintained and improved when the wheels are used.

Claims (3)

1. small size electric dust collector, comprise: built-in electric blowing machine, be formed with pump orifice forwardly, form handled main body of dust collector on top, be arranged on the floor aspirator on the described pump orifice, and be located at the wheel on the rear bottom of described main body of dust collector; It is characterized in that described wheel is set as the bottom surface that can haunt described main body of dust collector, when described wheel stretched out, the center of gravity of described main body of dust collector was towards described floor aspirator side shifting.

2. small size electric dust collector according to claim 1 is characterized in that, is provided with wheel support component that described wheel is installed and operates the haunt operating portion of position of described wheel by described wheel support component.

3. according to claim 1 or 2 described small size electric dust collectors, it is characterized in that wheel relatively is arranged on the both sides, rear of described main body of dust collector.

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