KR20010060381A - Brush and its manufacturing method of electric vacuum cleaner or related products - Google Patents

Abstract

PURPOSE: To provide a brush for a vacuum cleaner and its manufacturing method which can remarkably reduce the labor and cost of manufacturing and assembling the parts constituting the brush. CONSTITUTION: The brush comprises a brush body 1, wherein a large number of bundles of fibers two-folded into a U-shape are arranged like a band plate with each end on the fold put in a line, and a string-like fitting member 2 attached to all along the edge portion on the side of the base end of the brush body 1 by means of sewing, braiding or bonding. The manufacturing method includes the process wherein bundles of long fibers are folded zigzag into a band plate-like body 10 of a certain width, the process wherein the fitting member 2 is attached to each of both the longitudinal edges of the band plate-like body 10 and the process wherein the band plate-like body 10 is divided crosswise into two brushes.

Description

Brush for electric vacuum cleaner and the manufacturing method {BRUSH AND ITS MANUFACTURING METHOD OF ELECTRIC VACUUM CLEANER OR RELATED PRODUCTS}

The present invention relates to, for example, a brush for use in a rotary brush or the like mounted on a suction nozzle of an electric vacuum cleaner and a method of manufacturing the same.

7 to 9 show a brush of the first conventional example for attaching to the rotor 20 of the rotary brush.

This brush (B1), which is the original applicant of the same applicant as the present application (Patent No. 2703842), is made of a large bundle of fiber bundles in a state of being folded twice in a groove of a channel member 52 made of synthetic resin or rubber. The structure which fixed the state which pinched | interposed the base end side of the brush main body 51 connected in the shape by the string (a) is tied.

As shown in Fig. 9, the brush body 51 bends a long bundle of fibers in an S shape to form a large plate-shaped body 50 having a predetermined width, and the large plate-shaped body 50 is formed at both edges in the longitudinal direction thereof. It is made by the method of dividing | segmenting along the cutting line d of the width direction, after fixing to the negative string bundling part b.

This brush B1 corresponds to the brush A1 attached to the rotary brush C built in the suction nozzle (not shown) of the vacuum cleaner, as shown in FIG. 3 as an embodiment drawing of the present invention.

Four sets of brush mounting grooves 20a are formed in the outer circumferential surface of the rod-shaped rotor 20 made of metal such as aluminum, which is the main body of the rotary brush C, or made of synthetic resin by extrusion molding.

The brush B1 is placed in the preventive state by sliding the bulging base 52a (see Figs. 7 and 8) of the channel member 52 in the mounting groove 20a by sliding in the axial direction. It is fixed.

Next, FIG. 10 is a longitudinal cross-sectional view of the brush of the second conventional example for the vacuum cleaner.

The brush B2 disclosed as Japanese Patent Laid-Open No. Hei 11-89762 includes a base plate 62 having a large plate-like base member 62 having a mounting member 63 fitted in the mounting groove 20a at its proximal end. It consists of the board-shaped brush body 61 attached to the front end side of the member 62. As shown in FIG. 64 is an iron strap for fixing the brush body 61.

However, the brush B1 of the first conventional example is for fixing the form in which the long bundle of fibers is arranged in a large plate shape when the brush body 51 is made, and the channel member 52 sandwiches the brush body 51. It requires two wire rope fixing processes to fix a condition.

In addition, it takes time and expense to produce the channel member 52 separate from the brush body 51.

In addition, the brush B2 of the second conventional example is separately manufactured for the brush body 61, the base member 62, and the mounting member 63, and then assembled in the form of a brush through iron string fixing processing or the like. It takes a lot of time and money.

Accordingly, it is an object of the present invention to provide a brush such as an electric vacuum cleaner and its manufacturing method which can significantly reduce the time and cost required for the production of each component constituting the brush and their assembly.

Figure 1 shows a first embodiment of the present invention, a partial perspective view of a brush.

2 is a partial plan view showing a first embodiment of the present invention, illustrating a method for producing a brush.

Figure 3 shows a first embodiment of the present invention, a longitudinal cross-sectional view showing a state in which a brush is attached to the built-in straps of the vacuum cleaner of the vacuum cleaner.

Figure 4 shows a second embodiment of the present invention, a partial perspective view of a brush.

Fig. 5 shows a second embodiment of the present invention and is a partial plan view illustrating a method of manufacturing a brush.

Fig. 6 shows a second embodiment of the present invention, and is a longitudinal sectional view showing a state in which a brush is attached to a rotor built in a suction nozzle of a vacuum cleaner.

Fig. 7 shows a first conventional example and is a partial perspective view of the brush.

8 shows a first conventional example, and is a partial perspective view of the channel member.

9 is a partial plan view illustrating a first conventional example and illustrating a method of manufacturing a brush body;

Fig. 10 shows a second conventional example and is a longitudinal sectional view of a brush.

(Explanation of symbols on the main parts of drawing

A1, A2: Brush C: Rotating Brush

1 brush body 2 mounting member

3: iron string 10: large plate-like body

20: rotor 20a: mounting groove

B1, B2: conventional brush

50: large plate 51: brush body

52: channel member 52a: bulge base (膨出 基 端)

61 brush body 62 base member

63: mounting member 64: iron string

64a, 64b: String tie area 64d: Cutting line

Brushes, such as for a vacuum cleaner according to the present invention for achieving the above object,

It is used for rotating brushes installed in the suction nozzle of the vacuum cleaner,

A brush body (1) having a shape in which a plurality of fiber bundles folded twice in a U shape are connected in a large plate in a state in which the side ends folded twice are arranged in a straight line;

And a string-shaped mounting member 2 fixed over the entire length of the edge portion at the proximal end of the brush body 1,

It is characterized in that the mounting member (2) is inserted into the mounting groove (20a) formed in the outer peripheral surface of the rotor 20 of the rotary brush in a separation prevention state.

The mounting member 2 may be fixed to the brush body 1 by sewing, weaving, or bonding means.

Moreover, the manufacturing method of the brush by this invention is

Bending a long bundle of fibers into an S shape to form a large plate-shaped body 10 of a predetermined width;

A step of sewing the string-like mounting members 2 on both edge portions in the longitudinal direction of the large plate-shaped body 10 by fixing, weaving or bonding means, respectively;

And a step of dividing the large plate-shaped body 10 on which the mounting member 2 has been fixed at the center in the width direction to form two brushes.

(Example)

Next, a first embodiment of the present invention will be described with reference to Figs.

The brush A1 of this embodiment is fixed to the proximal side of the brush body 1 in order to fix the large brush-shaped brush body 1 and the brush A1 to their mounting portions, as shown in FIG. 1 as a partial perspective view. It consists of the mounting member 2.

In FIG. 3, the state which attached this brush A1 to the rotor 20 of the rotating brush C mounted in the suction nozzle of a vacuum cleaner is shown as a longitudinal cross-sectional view.

In the rod-shaped rotor 20 of a predetermined length, four sets of mounting grooves 20a are formed in the axial direction of the outer peripheral surface thereof.

The cross section of the mounting groove 20a is undercut in order to prevent separation of the mounting member 2 inserted into the groove.

As shown in Fig. 1, the brush body 1 has a form in which a plurality of fiber bundles folded twice in a U shape are connected in a large plate shape in a state in which the side ends folded twice are arranged in a straight line.

The mounting member 2 of this embodiment may be a cord-like body made of synthetic resin, or a wire rod made of synthetic resin made of a desired thickness having appropriate rigidity and flexibility.

Next, the manufacturing method of the brush main body 1 and the brush A1 is demonstrated, referring FIG.

First, a long bundle of fibers trimmed to a desired thickness is bent into an S shape to obtain a large plate-shaped body 10 having a width of about twice the length of the brush.

It is not shown, but using a few warp yarns, weaving, for example weaving feet. Unnecessary warp is extracted later.

Next, the mounting member 2 is fixed to both ends of the longitudinal direction of the large plate-shaped body 10 over its entire length.

What is necessary is just to employ | adopt a method, such as sewing with the iron string 3, as shown in figure.

Or when weaving the board-shaped object 10, you may knit together the string-shaped mounting member 2 in the both edge part.

Alternatively, the mounting member 2 may be fixed to the large plate-shaped body 10 by an adhesive means.

When the large plate-shaped member 10 in which the fixing member 2 is fixed is divided along the center line X-X in the width direction, as shown in FIG. 2, the brush A1 shown in FIG. 1. You can complete two at a time.

Next, the brush A2 of 2nd Example is shown to FIG.

The difference from the brush A1 of the first embodiment is that two thinner string-like mounting members 2 are fixed in an arrangement in which the edge end portions on the proximal side of the brush body 1 are sandwiched.

In this way, the brush A2 is more firmly prevented from detachment so as to be understood in FIG. 6 as a longitudinal sectional view in which the mounting member 2 of the brush A2 is fitted into the mounting groove 20a of the rotor 20.

The material, shape, number, arrangement, and the like of the mounting member 2 may be arbitrarily selected in correspondence with the shape of the mounting groove 20a of the brush.

The brushes A1 and A2 of the above embodiments are attached to the rotor 20 of the vacuum cleaner, but, of course, the brushes A1 and A2 may be attached to various other apparatuses or tools according to the present invention.

As apparent from the above description, according to the brush and the manufacturing method of the vacuum cleaner etc. of this invention, the effect excellent in practical use as listed below is acquired.

(a) To reduce the time and cost of making the mounting member for fixing the brush to the place of attachment separately from the brush body.

(b) The strap-shaped mounting member can be appropriately selected and used from a variety of existing strings, and even if specially ordered, it is very inexpensive compared to that made of synthetic resin.

(c) Unlike conventional brushes, which require two fastening processes, this cumbersome process can be completed only once.

(d) The process of dividing the two brushes into two after forming the union state in the width direction is very efficient.

Claims (3)

It is used for rotating brushes installed in the suction nozzle of the vacuum cleaner, A brush body (1) having a shape in which a plurality of fiber bundles folded twice in a U shape are connected in a large plate shape in a state in which the side ends folded twice each in a straight line, And a string-shaped mounting member 2 fixed over the entire length of the edge portion at the proximal end of the brush body 1, A brush such as an electric vacuum cleaner, characterized in that the mounting member (2) is inserted into the mounting groove (20a) formed on the outer circumferential surface of the rotor (20) of the rotating brush in a separation prevention state. The brush as claimed in claim 1, wherein the mounting member (2) is fixed to the brush body (1) by means of sewing, weaving, or bonding. Bending a long bundle of fibers into an S shape to form a large plate-shaped body 10 of a predetermined width; A step of sewing the string-like mounting members 2 on both edge portions in the longitudinal direction of the large plate-shaped body 10 by fixing, weaving or bonding means, respectively; A method of manufacturing a brush such as an electric vacuum cleaner comprising the step of dividing a large plate-shaped body 10 on which the mounting member 2 is fixed, at a central portion thereof in the width direction, to form two brushes.