JP2703842B2 - Vacuum cleaner brush assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush assembly to be attached to a rotating body of a suction device of a vacuum cleaner, and more particularly to a brush assembly suitable for swingably attaching to a rotating body.

[0002]

2. Description of the Related Art Conventionally, as this type, as shown in FIG. 9, a brush base 10 is formed in a U shape with a metal, and a steel wire core 12 and a brush 13 are inserted into a groove 11 of the brush base 10. And
It is known that the brush base 10 is pressed from both sides to form a brush assembly.

As shown in FIG. 10, a brush 13 is implanted on a hard brush base 14 made of a resin, a timber, or the like using a wedge 15 made of a metal piece.

When the brush assembly is used as a rotary brush 16 of a vacuum cleaner as shown in FIG. 11, the brush assembly is inserted and fixed in a groove of a rotary body 17 for use.

[0005]

However, in such a brush assembly, as shown in FIGS. 5 and 6, the brush assembly is attached to the rotating body so as to be swingable, and depending on the rotation direction of the rotating body. It cannot be applied to a suction tool that increases the versatility by changing the function of the brush.

That is, since the rotating body of such a suction tool has a structure in which the brush base is inserted into a twisted groove having a nearly spiral shape, the brush base is connected to the twisted groove formed on the outer surface of the rotating body. In order to form a shape that can be inserted into and fitted to the device and that can be held swingably in this state, a high-level manufacturing technique is required, and manufacturing is very difficult.

In addition, even if a brush base is formed in a shape that fits into the groove and fitted into the groove of the rotating body, the tip of the brush partially comes into contact with the floor surface with the rotation of the rotating body, and the brush base is moved. In the case of following the rotation, since the brush base is hard, the twisted brush base tends to rotate in the rotation direction over the whole, so that the followability is poor and the function as a swingable brush cannot be sufficiently exhibited.

Further, in any of the above-mentioned brush assemblies, the bristle implantation requires a complicated process, and since the brush bristles are planted one by one in a bundle, the tips of the brush bristles are not aligned and irregularities are formed. There is a drawback in that, after planting the brush bristles, it is necessary to cut off the tips of the brush bristles using an extremely advanced cutting technique in order to make the lengths of the brush bristles spirally identical.

[0009]

According to another aspect of the present invention, there is provided a brush assembly for use in a suction device of a vacuum cleaner comprising a brush base and a brush, wherein the brush base is made of vinyl chloride. , Made of a soft material such as rubber, formed into a substantially U-shape having a groove, and a brush is formed into a belt-like body with a fiber bundle made of synthetic resin fiber thread, cotton thread, etc., and the brush is inserted into the groove of the brush stand And sew them together with a thread.

[0010]

[Function] Because the brush base and the brush are sewn, there is no need for a complicated flocking process as in the past, and no brush cut after flocking is required, making the brush very simple and inexpensive. Assemblies can be made.

Further, since the whole brush assembly has flexibility, it can be easily inserted into a groove of any shape of the rotating body of the rotating brush, and can be used as a brush following the rotation of the rotating brush. Function can be fully demonstrated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. 1 is an external perspective view of the brush assembly of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, FIG. 3 is an external perspective view of a brush stand, FIG. 4 is a plan view of the brush, and FIG. It is an external appearance perspective view of the rotating brush of the vacuum cleaner which applied the assembly. FIG. 6 is a sectional view of FIG.

Reference numeral 1 denotes a brush assembly according to the present invention, which comprises a brush base 2 and a brush 3 made of a soft material such as vinyl chloride or rubber. The brush stand 2 has a groove 4,
It is molded into a substantially U-shape. The brush 3 is formed by continuously reciprocating and bending a pile formed by twisting synthetic resin yarns, cotton yarns, and the like into a fixed width, that is, twice the required height of the brush, to form a large number of endless tufts continuously. The vicinity a is sewn to form a fiber bundle band. When the brush assembly 1 is to be manufactured, the brush 3 is cut at the center AA, and the side where the end portion of the fiber bundle is sewn near the groove 4 of the brush base 2.
After that, a predetermined portion b of the brush stand 2 is sewn with a thread.

In the state where the center AA of the brush 3 is not cut, the brush base 2 is mounted above and below the brush 3 as shown in FIG. Are sewn, and after sewing, the center BB of the brush 4 is cut, and two brush assemblies 1 are completed.

FIG. 5 shows a rotary member 5 of a rotary brush 5 of a vacuum cleaner.
In the embodiment using the brush assembly 1 for a, the rotating brush 5
The brush assembly 1 is inserted into, for example, a groove 6 twisted by 180 degrees provided on the rotating body 5a. Since the brush assembly 1 has flexibility, the brush assembly 1 can be inserted according to the shape of the groove 6.

If the groove 6 is made so that the brush base 2 can swing as shown in FIG. 6, even if the groove is twisted by 180 degrees as described above, the brush assembly can be easily formed in accordance with the rotation direction of the rotary brush 5. The article 1 can swing in the direction of the arrow.

As described above, since this brush base is made of a soft resin, it can be easily and stably mounted simply by inserting it into the spiral groove of the rotating body of the vacuum cleaner. In addition, the brush tip corresponding to the abutting part receives the force in the rotating direction because the tip of the brush partially contacts the floor with the rotation of the rotating body. Due to the torsional deformation of the table, the brush can easily follow the rotation and enhance the cleaning function. Also, the portion where the torsional deformation occurs causes the brush base to extend, so that the brush comes off.However, the brush base is made of soft resin, and the brush is sewn to the brush base with a thread. The thread follows the elongation of the platform, and the detachment of the brush can be completely prevented.

For example, as shown in FIG. 8, when the brush assembly 1 is a brush assembly integrally formed with a blade 2a in which one side of the brush stand 2 is slightly shorter than the length of the brush, In the direction, when the cleaning surface (for example, carpet) is cleaned by the blade 2a and the rotating brush 5 is rotated in the reverse direction, the brush assembly swings and the cleaning surface (for example, folding, floor surface) is cleaned by the brush 3. Is done.

At this time, for example, if the thickness of the brush 3 is made smaller than the conventional brush thickness of 0.1 mm or 0.15 mm (for example, 0.075 mm), the brush 3
It becomes very soft, and when it is folded with the brush 3 and the floor surface is cleaned, the cleaning surface is wiped and cleaned, and a cleaning effect different from the conventional one is achieved.

The brush 3 and the brush base 2 may be welded to form a brush assembly. However, if the welded brush assembly is used for the rotating brush 5, the brush 3 may be used during use.
And the brush stand 2 may come off.

[0021]

According to the brush assembly of the present invention, a brush is sewn on a brush base made of a soft material. Therefore, it is easy to insert a linearly formed brush base into a twisted groove of a rotating body. Therefore, it is possible to obtain a swingable brush suitable for this, and since it has good followability to the rotation of the rotary brush, the function as a swingable brush can be sufficiently exhibited. Further, the brush assembly of the present invention can simply fabricate a brush assembly as compared with the conventional flocking, because the belt-shaped brush piece is simply sewn to the brush base formed on a straight line, Further, since the trouble of cutting the brush tip after sewing is not required, an inexpensive brush assembly can be supplied.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a brush assembly according to the present invention.

FIG. 2 is a sectional view of FIG. 1;

FIG. 3 is an external perspective view of the brush stand.

FIG. 4 is a plan view of the brush similarly.

FIG. 5 is an external perspective view of a rotating brush of a vacuum cleaner to which the brush assembly of the present invention is applied.

FIG. 6 is a sectional view of FIG. 5;

FIG. 7 is an external perspective view for explaining another production of the brush assembly.

FIG. 8 is a sectional view of another embodiment of the brush assembly.

FIG. 9 is a cross-sectional view of a conventional brush assembly.

FIG. 10 is a sectional view of another conventional brush assembly.

FIG. 11 is an external perspective view of a conventional rotary brush.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brush assembly 2 Brush stand 3 Brush 4 Groove 5 Rotating brush

Claims (1)

(57) [Claims] 1. A brush assembly used for a suction device of a vacuum cleaner comprising a brush base and a brush, wherein the brush base is made of a soft material such as vinyl chloride or rubber, and is formed in a substantially U-shape having a groove. The brush is a belt-shaped belt of a predetermined width formed by continuously reciprocating and bending a bundle of fibers of a plurality of long piles into a fixed width to form a large number of endless tufts and sewing around the edges of the tufts. A band-shaped brush piece cut in the sewing direction in the middle of the body, and the band-shaped brush piece and the brush stand are sewn together with the tuft side of the band-shaped brush piece inserted into the groove of the brush stand. Brush assembly for vacuum cleaner.