JPS6020010B2 - vacuum cleaner mouthpiece - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an improvement of a suction body for a vacuum cleaner equipped with a brush.

[Background of the invention]

With conventional suction devices, it has been difficult to suck up lint and hair from the carpet.

Although the mouthpiece is equipped with a brush, when cleaning the carpet, the brush, which can be retracted and retracted, is completely buried below the sled part of the mouthpiece. I couldn't take it.

When you take out the brush, you can easily remove lint, etc., but on the other hand, the brush gets stuck in the carpet, and the operability of the mouthpiece, that is, the sliding from front to back and from side to side, becomes extremely poor.

Therefore, the suction body was constructed so that the brush could be used when folding or cleaning wooden floors, and the brush could be inserted when cleaning carpets. [Object of the Invention] In view of the problem of lint and dust suction in carpet cleaning, the purpose of the present invention is to provide a suction body for a vacuum cleaner that can easily remove lint without significantly impairing operability. This is what we are trying to provide.

[Summary of the invention]

The gist of the present invention is to provide a dust suction closure consisting of a central suction passage and an inner suction passage extending to the left and right of the central suction passage, and a brush provided along the longitudinal direction of the dust suction closure. By forming a plurality of recesses in the sled part that fit into the dust suction port through the brush, and by positioning the lower end surface of the brush when cleaning the carpet between the lower surface of the sled part and the bottom surface of the recess, The point is that the part of the brush that faces the recess is designed to scrape off the lint that is tangled in the carpet.

Furthermore, another gist of the present invention is to have a dust suction gate consisting of a concentrated suction passage and an internal suction passage extending to the left and right of the concentrated suction passage, and to have a dust suction opening □ whose front curves along the front and rear longitudinal direction. and a rear warp part, and a brush provided on the front side of the rear warp part and along the longitudinal direction of the dust suction closure, the rear warp part has a plurality of brushes that are connected to the dust suction entrance. The lower end of the brush is positioned between the lower surface of the rear sled and the bottom of the recess when cleaning the carpet, and the dust suction opening □ side adjacent to the brush When the brush is flush with the lower end surface of the brush, the lower end surface forms a wall portion with a height slightly protruding, and further extends along the longitudinal direction of the dust suction closure and below the wall portion. By installing the wind speed control body made of an elastic material on the dust suction gate side adjacent to the wall, the wind speed control body rests on the wall, and the degree of contact with the carpet of the brush can be controlled. The point is that it has been made even smaller.

[Embodiments of the Invention] The present invention will be described below based on the drawings of the embodiments.

In the drawing, the mouthpiece body 1 consists of a lower case 2 and an upper case 3, and the mouthpiece body 11 is provided with a rotatable joint 4.

The lower case 2 is provided with square windows 6 at both front corners for allowing the rolling wheels 5 to protrude.

A central suction passage 7 is provided in the center, and concave internal suction passages 8 are provided on both sides of the central suction passage 7, and these provide a dust suction opening □ that collects dust on the bottom surface of the lower case 2. is configured. A wind speed control body 9 formed of an elastic plate such as rubber that extends along the longitudinal direction of the dust suction gate is placed near the front and rear of the dust suction opening □, and the front and rear of the dust suction opening ○ are surrounded by this. .

The wind speed control body 9 has a long groove 101 formed in the lower case 2.
He is considered a chivalrous man. A front curvature part 11 and a rear curvature part 12 are formed on the front and rear lower surfaces of the lower case 2.

The brush 13 is provided on the front side of the rear sled part 12 so as to be able to be switched in and out, and a window part 14 through which the brush 13 comes out and goes out is formed in the lower case 2.

The brush turtle 3 extends in parallel along the longitudinal direction of the dust suction closure. In front of the window portion 14, that is, on the front wall of the brush 13, a wall portion 5 is provided that extends parallel to the brush portion 3.
The height of this wall portion 15 is set so that when the brush 13 is buried, that is, when cleaning the carpet, the lower end surface of the brush 13 is flush with the lower end surface of the brush 13, or the lower end surface of the brush 13 slightly protrudes. There is. Note that the brush 13 is configured to protrude sufficiently below the wall portion 15 when it is protruded, that is, when folding or cleaning the floor. The wind speed control body 9 extends below the wall portion 15. A plurality of recesses 16 are formed in a portion of the rear curvature portion 12 on the rear side of the brush 13, that is, in the rear curvature portion i2.

The depth of the recessed portion 16 is 3 willows. The recesses 16 are provided at three locations, with long recesses on both sides and short recesses in the center. The long one is 8 yards long, the short one is 4 yards long, and the length of the front and rear sled sections 11 and 12 is 31 yards, so the length of the remaining sections of the back sled sections 1 and 2 is 110 yards in total.
It's on the side. The lower surface of the rear warped portion 12 is the same as the surface of the wall portion 15,
Alternatively, the rear curved portion 12 is formed so as to protrude by about one willow. Therefore, the lower end surface of the brush 13 is
3 is buried, that is, when cleaning the carpet, it is located between the lower surface of the rear curved portion 12 and the bottom surface of the recessed portion 16.

Note that the lower end surface of the brush 13 is 0.5
A protruding dimension of about one leg to one rib is desirable. The rear side of the rear curvature portion 12 is formed with a tapered surface that rises diagonally upward.

A bumper 17 made of an elastic material is provided on the outer periphery of the mouthpiece body 1 to prevent damage to furniture and the like. Switching lever 1
Reference numeral 8 switches the appearance and retraction of the brush 13, and is provided on the mouthpiece body 1.

In the above configuration, when folding or cleaning a board floor, etc., the switching lever 18 is operated to cause the brush 13 to protrude as shown in FIG.

In such a case, the rolling wheel 5 and the brush 13 cause the mouthpiece 1 to float above the surface to be cleaned.

Then, the lint etc. on the cleaning surface is scraped up by the brush 13,
The dust is sucked in through the dust suction opening. In addition, since the cleaning surface and the suction mouth part do not come into close contact and sufficient space is secured, the suction mouth part
The suction force is not excessive, and the brush 13 hardly bites, so the suction body 1 slides smoothly on the surface to be cleaned, providing good operability. Next, when cleaning the carpet, the switching lever 18 is operated to bury the brush 13 as shown in FIG. In such a case, the suction force caused by the negative pressure of the dust suction opening □ of the suction body 1 causes the dust suction opening to suck up the carpet into the state where the arm is bent as shown in FIG.

Since the recessed portion 16 is provided in the rear sled portion 12, the carpet is attracted to the rear sled portion 12 in a wavy manner, although not shown. Therefore, the carpet comes into contact with the lower end surface of the brush 13 at the portion of the brush 13 facing the recess 16. The concave portion 16 hardly makes contact with the portions that do not face it. When the suction body 1 is moved forward in this state, the lint that is tightly entangled in the hair of the cloth will be scraped off by the tip of the brush 13 coming into contact with it, and some of it will be caught on the tip of the brush 13. The residue is disentangled from the strong entanglement with the hair of the carpet, and is easily sucked in from the concentrated suction passage 7 when the guide suction passage 8 of the suction body 1 passes over it.

The lint adhering to the tip of the brush 13 will eventually come off from the brush 13 by repeating the back and forth operation of the mouthpiece 1.
The lint from the seams is not strongly entangled with the wool, so it can be easily sucked out from the central suction path 7. In other words, the lint that is tightly tangled in the wool of the jacket is
Although this lint cannot be easily removed by the suction action of the suction body 1 alone, by scraping off this lint with the brush 13 of the suction body 1, it becomes strong and untangled with the fluff, making it easy to suction. will be done. In this way, lint and the like from the carpet can be effectively removed. At the same time, as mentioned above, the carpet is attracted in a wavy manner along the rear curved portion 12, and is not extremely attracted over the entire surface. Therefore, when the mouthpiece body 1 is moved back and forth on the carpet, the lower end surface of the brush 13 does not come into contact with the carpet over the entire wave, and does not bite into the carpet strongly. There is no increase in frictional resistance due to strong biting of the brush 13 into the carpet, and operability is not deteriorated. In addition, as is clear from FIG. 2 which shows the time of cleaning the toilet, on the guide suction passage 8 side adjacent to the brush 13,
If there is a wall portion 15 that is substantially flush with the brush 13, the carpet contacts only the rear side of the brush facing the recess 16, so that the frictional resistance is even smaller. That is, as shown in FIG. 2, when the mouthpiece body 1 is slid forward, the wind speed control body 9 is placed on the wall portion 15.
Due to this thickness, the carpet is separated from the lower end surface of the brush 13 on the front side of the brush 13, and contacts only on the rear side.

In other words, the carpet contacts the brush 13 at an angle of 8 toward the front. Brush 13 to scrape off lint etc.
It is not necessary to contact the carpet from front to back; only the rear part is sufficient. Therefore, lint can be easily removed, and there is little frictional resistance, making it easy to operate.

In addition, FIG. 5 is a graph showing the lint cleaning performance and operating force of the suction body of the above-mentioned example.

As is clear from this, the height (projection dimension) of the brush 13 from the bottom surface of the recess 16 is 0. & Legs are optimal, and the practical range is 0.2 to 1.3 skin. Next, FIGS. 6 and 7 show another embodiment of the present invention, in which a large number of rh narrow recesses 16 are provided in the rear sled portion. Note that the other configurations are the same as those in the previous embodiment, so explanations will be omitted. This makes it easier to clean short pieces of lint. [Effects of the Invention] As described above, according to the present invention, there is provided a suction port for a vacuum cleaner that can easily remove lint when cleaning a carpet, has low frictional resistance, and does not significantly impair operability. I can get a body.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the invention. Figures 1 and 2 are overall views of the suction body with the main parts cut away, with Figure 1 showing folding cleaning and Figure 2 showing floor cleaning, respectively. FIG. 3 is a side view of the lower case, FIG. 4 is a bottom view of the lower case, and FIG. 5 is a graph showing performance. 6th
7 show another embodiment, FIG. 6 is a side view of the lower case, and FIG. 7 is a bottom view of the lower case. 1...
... Suction body, 7... Centralized suction path "8...
...Guide suction path, 12... Rear warp section, 13...
... Brush, 16 ... Recessed part, 9 ... Wind speed control body, 15 ... Wall part. Figure 2, younger brother, 3, younger brother, q, grandchild, J, figure, 6, figure 7

Claims (1)

[Claims] 1. A dust suction opening consisting of a concentrated suction passage and a guide suction passage extending to the left and right of the concentrated suction passage, and a sled portion and a brush provided along the longitudinal direction of the dust suction opening. In this method, a plurality of recesses are formed in the sled part and communicate with the dust suction opening through the brush, and the lower end surface of the brush during carpet cleaning is positioned between the lower surface of the sled part and the recess. Features the suction body of a vacuum cleaner. 2. It has a dust suction opening consisting of a central suction passage and a guide suction passage extending to the left and right of this central suction passage, and a front curvature part and a rear curvature part are formed along the longitudinal direction before and after this dust suction opening, and after this In the case where the brush is disposed on the front side of the sled part and along the longitudinal direction of the dust suction opening, the rear sled part is formed with a plurality of recesses communicating with the dust suction opening, and the brush is arranged in the front side of the sled part and along the longitudinal direction of the dust suction opening. The lower end surface of the brush is located between the lower surface of the rear curvature part and the bottom surface of the recessed part, and the dust suction opening side adjacent to the brush is flush with the lower end surface of the brush during carpet cleaning, or the lower end surface thereof is A high wall portion that protrudes slightly is formed, and a wind speed control body made of an elastic body that extends along the longitudinal direction of the dust suction opening and below the wall portion is connected to the dust suction opening adjacent to the wall portion. A vacuum cleaner suction body characterized by being provided on the opening side.