JPH0670870A - Method for manufacturing suction tool for electric vacuum cleaner and raised cloth - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a suction tool for an electric vacuum cleaner that can reduce frictional resistance even when cleaning a carpet and thus can provide smooth running. [Structure] The suction tool body 11 is composed of an upper case 12 and a lower case 13. A suction port 15 is formed on a lower surface 14 of the lower case 13, and one pair is provided at the front of the lower case 13 for traveling. The roller 16 is provided, and the rotating roller body 17 is provided at the rear portion. The rotating roller body 17 has a structure as shown in FIG. That is, a raised cloth 19 made of a cut pile spun cloth made of fine fibers is wound on the outside of the transfer cloth 18, and the fine fibers of the raised cloth 19 are arranged in the radial direction with respect to the pipe 18. It is inclined and wrapped. Napping cloth 19
Has a configuration as shown in FIG. The sheet 27 cut into the processed size is tilted in the direction of arrow A28 in which the fine fibers are tilted in the radial direction after being wound around the pipe 18, and then cut at an angle A29 with respect to this tilt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction tool for an electric vacuum cleaner and a method for producing a raised cloth used in general households.

[0002]

2. Description of the Related Art Conventionally, a suction tool for an electric vacuum cleaner of this type is
As shown in FIGS. 4 and 5. That is, the suction tool body 1 is formed by the upper case 2 and the lower case 3,
A suction port 4 was formed in the lower case 3, and a small front roller 5 and a rear roller 6 were provided at the front and rear for running the suction tool body 1. Further, the gap A between the lower surface 7 around the suction port 4 of the lower case 3 and the floor surface increases the suction force to the floor surface, and the flow velocity of the airflow flowing through the gap A is increased to strongly remove dust. In order to suck in, the gap cannot be made large, and on the contrary, if it is made too small, there is a problem that hard dust etc. gets caught in this gap and scratches the floor surface,
It was set to have a size of about 0.5 to 2 mm. Therefore, in order to further increase the suction force, a lip-shaped strip 8 formed of a soft material is provided immediately behind the suction port 4 in a shape closer to the lateral width of the suction tool body 1.

[0003]

However, in the case of such a structure, when suction force is applied to the suction tool body 1, especially on the carpet, the front roller 5 is attracted by the suction force.
The rear roller 6 is buried in the carpet, and the lower surface portion 7 of the lower case 3 is pressed onto the carpet. Also,
At the same time, the lip-shaped strip 8 is similarly pressed onto the carpet. As a result, the lower surface portion 7 of the lower case 3 is
The frictional resistance between the whole and the carpet increased, and the operation resistance of the suction tool body 1 became very heavy, which made it inconvenient to use.

Therefore, an object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide an electric vacuum cleaner excellent in usability, which does not increase frictional resistance even when used on a carpet. .

[0005]

In order to achieve the above-mentioned object, the present invention is as follows.
A wide rotating roller body is rotatably provided, and this rotating roller body is formed by winding a raised cloth composed of a cut pile spun cloth formed of fine fibers on the outside of a cylindrical pipe. The fine fibers of the napped cloth are inclined around the pipe in the radial direction and wound around the pipe. The second means is
A raised cloth composed of a cut pile spun cloth formed of the fine fibers, the spinning cloth is inclined at an angle with respect to the slanting direction so that the fine fibers are inclined in a radial direction after being wound around a pipe. It was cut and processed in A.

[0006]

When a suction force is applied to the suction tool body as in the case of the first means described above, a wide rotating roller body is provided at the rear part of the lower case on the carpet, so that the pressure receiving area is large and the suction force is large. As a result, the rotary roller body is less likely to be buried in the carpet, so that the lower surface of the lower case is not pressed against the carpet. Also, because the rotating roller body that receives pressure rotates as the suction tool body travels, the frictional resistance between the entire lower surface of the lower case and the carpet does not rise, and the suction tool body's operation resistance is applied with suction force. But it doesn't change much. Further, the rotating roller body is constructed by winding a raised cloth formed of a cut pile spun cloth formed of fine fibers on the outside of the pipe, and the fine fibers of the spun cloth are arranged in a radial direction of the pipe, that is, a suction tool. Since the main body is inclined and wound in the direction of operation, the frictional resistance received from the direction of the weave of the carpet can be reduced even when cleaning the top of the carpet, so smooth running performance can be obtained. Thus, the suction tool for the electric vacuum cleaner which is easy to use can be provided. Further, as in the second means, the fine fiber is cut at an angle A with respect to the inclination so that the fine fiber is inclined in the radial direction after being wound around the pipe. The fine fibers of can be wound around the pipe while being inclined in the radial direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG.
A description will be given with reference to a few items. The suction tool body 11 is composed of an upper case 12 and a lower case 13. A suction port 15 is formed on a lower surface 14 of the lower case 13, and a pair of rollers 1 are provided at the front of the lower case 13 for traveling.
6 is provided, and a rotary roller body 17 is provided at the rear portion.

The rotary roller body 17 is constructed as shown in FIG. That is, a raised cloth 19 formed of a cut pile spun cloth made of fine fibers is wound on the outside of the pipe 18, and the fine fibers of the raised cloth 19 are inclined with respect to the pipe 18 in the radial direction and wound. It is attached. Holders 20 are fixed to both end surfaces of the pipe 18. The bearing 23 is rotatably fitted to the shaft fixed to the holder 20. A coil spring is mounted between the holder 20 and the bearing 23 in a compressed state. The bearing 23 is arranged so that it can move toward the holder 20 side in the direction of further compressing the coil spring and can return to the original position by the elastic force of the coil spring. The bearing 23 is fitted in a bearing hole 26 formed in the lower case 13, and when the raised cloth 19 of the rotating roller body 17 is moved in the thrust direction, one of them is a direction in which the coil spring is compressed. The bearing 23 is disengaged from the bearing hole 26 by the amount of the movement, and the rotating roller body 17 can be detached from the lower case 13. Also,
When inserting, the bearing 23 can be easily inserted by pushing the bearing 23 to the thrust side and contracting it.

According to the present invention, the suction tool body 11 has the above structure.
When a suction force is applied to the carpet, a wide rotating roller body 17 is provided at the rear of the lower case 13 so that the pressure receiving area is large and the rotating roller body 17 is less likely to be buried in the carpet due to the suction force. Therefore, the lower surface 14 of the lower case 13 is not pressed against the carpet. Also, the rotating roller body 1 that receives pressure
Since 7 rotates as the suction tool body 11 travels, the frictional resistance between the entire lower surface 14 of the lower case 13 and the carpet does not increase, and the operation resistance of the suction tool body 11 does not change much even when a suction force is applied. There is nothing to do. Further, the rotary roller body 17 is configured by winding a raised cloth 19 formed of a cut pile spun cloth formed of fine fibers on the outside of the pipe 18, and the fine fibers of the raised cloth 19 are applied to the pipe 18. Since the wrapping is inclined in the radial direction, that is, the direction in which the suction tool body is operated, the frictional resistance received from the direction of the weave of the rug can be reduced even when cleaning the rug, so that smooth running performance can be obtained. Further, one holder 21 of the rotating roller body 17 and the bearing 2
By fixing 3 and 3 in the thrust direction, even if frictional resistance is received from the carpet, it is possible to prevent the carpet from moving to one side, so that smooth running performance can be obtained.

Further, even if hair or the like is entangled with the surface of the cut pile-shaped spun cloth formed of fine fibers, the rotary roller body 17 is detachably provided on the lower surface 14 of the lower case 13, so that it can be removed. And easy to clean. The raised cloth 19 has a structure as shown in FIG. The sheet 27 cut into the processing size is attached to the pipe 18
After the fine fibers are wound in the radial direction, the fine fibers are tilted in the direction of arrow A28, and the angle A2 is added to the tilt.
By winding the raised fabric 19 around the pipe 18 by cutting at 9, the fine fibers can be reliably and efficiently wound around the pipe 18 while being inclined in the radial direction.

[0011]

As described above, the present invention has a large pressure receiving area on the carpet because of the wide rotating roller body provided on the rug, so that the rotating roller body is less likely to be buried in the carpet due to the suction force. Since the rotating roller body that rotates along with the movement of the suction tool body, the friction resistance between the entire lower surface of the lower case and the carpet does not rise, and the operation resistance of the suction tool body does not change much even if suction force is applied. There is nothing to do.

Further, the rotating roller body is constructed by winding a raised cloth made of a cut pile spun cloth formed of fine fibers on the outside of the pipe, and the fine fibers of the spun cloth are arranged in the radial direction with respect to the pipe. Since the suction tool body is inclined and wound in the direction of operation, the friction resistance received from the direction of the weave of the carpet can be reduced even when cleaning the top of the carpet, so that smooth running performance can be obtained.

Further, even if hair or the like is entangled on the surface of the cut pile spun cloth made of fine fibers, the rotating roller body is detachably provided on the lower surface of the lower case, so that the rotating roller body is It can be easily cleaned by removing it from the lower case.

As described above, the suction tool for the electric vacuum cleaner, which is easy to use, can be provided. Further, the raised cloth is cut and processed at an angle A with respect to the tilt direction so that the fine fibers are tilted in the radial direction after being wound around the pipe, thereby reliably and efficiently. The fine fibers of the raised fabric can provide a method for producing a raised fabric that can be wrapped around the pipe in a radial direction.

[Brief description of drawings]

FIG. 1 is a perspective view of a suction tool for an electric vacuum cleaner showing an embodiment of the present invention as viewed from the back side.

FIG. 2 is a perspective view of the rotating roller body.

FIG. 3 is a plan view showing a method for manufacturing the raised fabric.

FIG. 4 is a central sectional view of a suction tool for an electric vacuum cleaner showing a conventional example.

FIG. 5 is a perspective view of the same.

[Explanation of symbols]

 11 Suction Tool Main Body 12 Upper Case 13 Lower Case 15 Suction Port 17 Rotating Roller Body 18 Pipe 19 Raised Cloth 27 Sheet 28 Arrow A (Fine Fiber Falling Direction) 29 Angle A

Claims (2)

[Claims] 1. An upper case and a lower case,
A suction port is formed on the lower surface of the lower case, and a wide rotating roller body is rotatably provided at the rear part of the lower case. The rotating roller body is formed of fine fibers on the outer side of a cylindrical pipe. A suction tool for an electric vacuum cleaner, which is formed by winding a raised cloth made of a cut pile spinning cloth, and fine fibers of the raised cloth are inclined around a pipe in a radial direction and wrapped around the pipe. 2. A raised cloth composed of a cut pile spun cloth made of the fine fibers, wherein the spun cloth is formed so that the fine fibers are inclined in a radial direction after being wound around a pipe. A method for manufacturing a raised cloth, which is cut at an angle A with respect to an inclination direction.