JPH0613017B2 - Vacuum cleaner suction tool - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor suction device for an electric vacuum cleaner, and relates to a structure of the suction device suitable for cleaning a floor surface and tatami mat.

2. Description of the Related Art Conventionally, this kind of bed suction device is disclosed in, for example, Japanese Patent Application Laid-Open No. 55-1096.
As shown in Japanese Patent Publication No. 7, the structure shown in FIG. 5 is generally used and used properly so that the carpet surface, the floor and the tatami mat can be cleaned by switching the petal or the like.

That is, when used on a hard flat surface such as a floor or tatami mat,
By operating the petal, the brush 1 is projected from the lower suction tool 2, and the lower surface of the lower suction tool 2 is supported by the roller 3 and the brush 1 so that the brush 1 is lifted from the cleaning surface.
In this state, the clearance between the bottom surface of the lower suction tool 2 and the cleaning surface is 1 mm.
The floor is designed so that even if fine sand is sucked in, it will not be scratched.

Further, in the structure shown in FIG. 6, a wooden floor in which brush bristles 5 made of nylon thread having a diameter of about 0.15 mm are planted on the outer periphery of the lower suction tool 4 and a suction tool dedicated to tatami mats have been considered. .

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a structure, when used on a hard flat surface such as a wooden floor surface or a tatami surface, first, on the wooden floor surface, the focused and hardened brush body is a wooden floor. Since the surface is rubbed, there are numerous fine scratches, and particularly in the case of wax-treated ones, there has been a serious problem in appearance, and at the same time, the rubbing feel during operation has resulted in a poor cleaning feel. In addition, the movement traces of the rollers and the rumbling noise of the movements have been problems.

Even in the case of tatami mats, quality problems such as scraping off the outer skin of the igusa that forms the tatami mat with the brush body, the problem of unpleasant noise when the tatami mat is rubbed during cleaning, especially when operating from the direction orthogonal to the mat There has been a strong demand for improvement in the tangling and uncomfortable feeling when performing and the unpleasant sound that damages the tatami mat.

It is an object of the present invention to solve this problem, and to provide an excellent suction tool that improves the feeling of operation and prevents damage due to the action of a raised cloth against hard flat surfaces such as wooden floors and tatami mats. .

Means for Solving the Problems Means of the present invention to solve such conventional problems are
Suction groove formed in the bottom left and right direction of the suction tool body communicating with the suction port, a mounting seat provided on the bottom of the suction tool body so as to be located in front of and behind the suction groove, and a cut provided on this mounting seat. A raised fabric made of a pile-shaped spun cloth, the plurality of mounting seats located on the front side of the suction groove are independent, and a suction passage is formed between the ends of the adjoining mounting seats.
A lateral inflow passage is provided by opening the outside between the front and rear mounting seats, and the pitch of each stock of the raised fabric is set to be different in the vertical direction and the horizontal direction.

In the above-mentioned means of the present invention, since the raised cloth made of the cut pile-shaped spun cloth is configured by adhesion or the like on the outer peripheral bottom surface of the lower suction tool, it does not contact the peripheral surface when contacting the non-cleaning surface. Since it feels soft and fits well, it acts like wiping its surface, which improves scratch protection and slipperiness on hard flat surfaces such as wooden floors and tatami mats, and eliminates unpleasant noise during operation. It is a thing. Further, the action of polishing a hard plane is also generated.

Further, small dust or the like that has entered the interior of the napped cloth passes through the air passages between the stocks of the napped cloth and is sucked into the suction opening by the airflow flowing to the suction opening, so that the self-cleaning effect of the napped cloth is also obtained.

Examples Examples will be described below with reference to the accompanying drawings.

In FIGS. 1 to 4, the suction tool body 6 is an upper suction tool 7.
This is obtained by connecting the lower suction tool 8 and the lower suction tool 8, and an extension pipe 9 is detachably connected to the suction side of the electric vacuum cleaner body through a hose, and the upper suction tool 7 has a ring 1 attached thereto.
It is rotatably attached at 0. Reference numeral 11 denotes a suction port, which is formed substantially in the center of the lower suction tool 8 and communicates with the pipe 9, and forms a suction groove 12 extending from the suction port 11 to the left and right ends of the lower suction tool 8.

Before and after the suction groove 12, and on the bottom of the outer peripheral portion, a bank-shaped mounting seat 1
3 is formed. 14 is a raised cloth formed in the longitudinal direction of the lower suction tool 8 and is made of a cut pile spun cloth, and is fixed to the upper surface of the mounting seat 13 by adhesion.

The pile cloth 14 is made of ultrafine fibers having a pile thickness of 0.1 mm or less and is formed with high density. Regarding the pile length, in order to prevent the suction tool body 6 from being attracted to the surface to be cleaned and the mounting seat 13 from coming into contact with the surface to be cleaned during cleaning, and reducing the contact resistance with the surface to be cleaned during operation to make it slippery. By setting the length to 4 mm or more, a soft feel that cannot be obtained with conventional brush bristles or rollers is obtained.

Further, regarding the mounting arrangement of the raising cloth 14, a plurality of suction passages 15 are formed between the raising cloth 14 and the raising cloth 14 in the front portion of the suction tool body 6 to secure and improve the dust absorption performance of the front corner portion. Is going. The dust suction performance can be arbitrarily changed by adjusting the height of the upper surface of the suction passage 15.

In addition, the higher the density of the napped cloth 14 is, the more the durability is improved, but the smaller the space between the napped cloths 14 is, the smaller the dust is accumulated between the napped cloths 14 and the soft feeling of the napped cloth 14 is reduced. However, when some kind of impact is applied to the suction tool body 6, the dust and the like fall onto the floor surface, which is not preferable. Therefore, since the napped cloth 14 is made by a spinning process, when the pile is woven into the cloth, the napped cloth 14 can be easily formed by weaving so that the pitch of each stock 16 of the napped cloth 14 is different in the longitudinal direction and the lateral direction, The pitch of each stock 16 of the napped cloth 14 is large with respect to the direction A in FIG. 3, that is, the pitch in the direction orthogonal to the inflow direction of the air flow sucked into the suction port 11 is large. The air passage 1 between the stocks 16 of the raised cloth 14 by the large pitch P
7 is formed so that dust and the like remaining between the raised cloths 14 can be cleaned by the air flow passing through the air passage 17.

In the rear part, a raised cloth 14 is integrally formed to have a length substantially equal to the longitudinal direction of the lower suction tool 8, and the tightness of the suction groove 12 is improved to increase the suction pressure to increase the suction pressure. The dust absorption performance of is improved. Further, in the side part, the suction airflow is faster than the side part of the lower suction tool 8 at the suction groove 1
A lateral inflow passage 18 is provided in two parts to secure and improve the dust collecting performance on the lateral side. The dust suction performance can be changed by changing the height, shape, etc. of the lateral inflow passage 17 and adjusting the opening cross-sectional area thereof. Further, the shape of both ends of the napped cloth 14 is formed into an R-shaped and smooth shape so that dust sucked from the front and rear of the suction tool body 6 can be smoothly flowed into the suction groove 12 without being caught by the end of the napped cloth 14. I am doing it.

Next, the operation and action of the configuration of this embodiment will be described. When the pipe 9 of the suction tool body 6 is connected and fixed to an extension tube via a hose connected to the electric vacuum cleaner body, and the wooden floor or cushion floor, which is the surface to be cleaned, is cleaned,
Raised cloth 14 adhered and fixed to the mounting seat 13 of the lower suction tool 8.
The tip part of the touches the wooden floor surface and slides carefully in front and rear cleaning operations. At this time, since the contact with the wooden floor surface is the cut pile spun cloth formed of fine fibers, the raised cloth 1
The elasticity of No. 4 is extremely soft, the contact sliding is soft, and it moves smoothly on the wooden floor surface.

Therefore, the feeling of movement is extremely smooth, it gets stuck,
Abnormal sliding noise is eliminated. In addition, the raised cloth 14 itself has an effect of wiping the wooden floor surface to produce an effect of brushing the wooden floor surface. Furthermore, even when it moves over solid foreign matter such as sand grains, since the pile length of the napped cloth 14 is set to 4 mm or more, sand grains are strongly pressed against the wooden floor surface by being pushed into the dense pile. Without any damage, it can be prevented.

Dust on the front and rear of the suction tool body 6 is also sucked into the suction groove 12 at high speed by the suction passage 15 and the side inflow path 18, and the dust suction range is greater than the width dimension of the suction tool body 6. By doing so, the cleaning efficiency can be greatly improved.

In addition, small dust that has entered the interior of the raised cloth 14 passes through the air passages 17 between the stocks 16 of the raised cloth 14 and is sucked into the suction port 11 by the air flow flowing to the suction port 11. A cleaning effect is also obtained.

Next, the cleaning of the tatami mat is similar to that of the wooden floor, but especially for the strawberries forming the tatami mat, the raised cloth 14
Because the ultrafine fibers that form the film have a low rigidity, they act like sliding on the side surface of each pile, and the feeling of operation can be obtained due to the reduction of sliding resistance, and the phenomenon of scraping of the strawberry surface can be prevented.
In addition, the tip of the cut pile fully enters between the straw grasses and dust can be ejected, so that efficient and hygienic cleaning can be performed.

EFFECTS OF THE INVENTION As described above, the present invention is a cut pile spun cloth formed of fine fibers, so the elastic force of the napped cloth is extremely soft, the contact sliding is soft, and the wooden floor surface is smoothly moved. .

Therefore, the moving feel is extremely smooth, and the abnormal sliding noise caused by a squeak is eliminated. In addition, the raised cloth itself has an effect of wiping the wooden floor surface to clean the wooden floor surface. Furthermore, even when it moves over solid foreign matter such as sand grains, because the pile length of the napped cloth is set to 4 mm or more, sand grains are pushed into the dense pile and are strongly pressed against the wooden floor. Without it, scratches can be prevented.

Further, small dust or the like that has entered the interior of the napped cloth passes through the air passages between the stocks of the napped cloth and is sucked into the suction opening by the airflow flowing to the suction opening, so that the self-cleaning effect of the napped cloth is also obtained.

In addition, for the straw mats that form the tatami mat, the rigidity of the ultrafine fibers that form the raised cloth is low, so that they act like sliding on the side surface of each pile, and the feel of operation is obtained due to the reduction of sliding resistance. Scraping phenomenon can be prevented, and the tip of the cut pile can fully enter the space between the straw and grass, and dust can be ejected, enabling efficient and hygienic cleaning.

[Brief description of drawings]

FIG. 1 is a sectional view of a suction tool showing an embodiment of the present invention, FIG. 2 is a perspective view of a bottom portion of the suction tool, FIG. 3 is a sectional view of a main part of a raised cloth, and FIG. FIG. 5 is a cross-sectional view taken along the line XX, FIG. 5 is a cross-sectional view of a main part of a conventional suction tool, and FIG. 6 ... Suction tool body, 8 ... Lower suction tool, 11 ... Suction port, 14 ... Brushed cloth, 16 ... Stock, 17 ... Air passage,
P: Great pitch.

Claims (1)

[Claims] Claim: What is claimed is: 1. A suction groove communicating with the suction port and formed in the bottom part left and right direction of the suction tool main body, a mounting seat provided on the bottom of the suction tool main body so as to be positioned along the front and rear of the suction groove, and this mounting. And a raised cloth made of a cut pile spun cloth, the plurality of mounting seats located on the front side of the suction groove are independent, and a suction passage is provided between the end portions of the adjacent mounting seats. A suction tool for an electric vacuum cleaner, which is formed and opened laterally between the front and rear mounting seats to provide a lateral inflow path, and further in which the pitch of each stock of the raised fabric is set to be different in the vertical direction and the horizontal direction.