JP2004105770A - Brush assembly and rotating brush of vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brush assembly for a vacuum cleaner dispensing with a sewing work of a brash material yarn and a special molding work, easily responding to multiproduct production, improving production efficiency, and reducing the production cost. <P>SOLUTION: This brush assembly 5 is constituted by clamping a brush body 7 comprising a plurality of brush material yarns 71 by a blade 6 and provided in a suction port body 3 of the vacuum cleaner. The blade 6 and the brush body 7 are formed separately and the cross section of the blade 6 is formed into an approximately U-shape. The root part of the brush body 7 is fixed by a core material 72, and the brush body 7 is detachably clamped to the blade 6 at the part of the core material 72. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a brush assembly of a vacuum cleaner and a rotating brush including the same, for example, a brush assembly and a rotating brush provided in a suction opening of an electric vacuum cleaner.

FIG. 11 shows the appearance of a general vacuum cleaner which has been conventionally known, and FIG. 12 shows the cross-sectional structure of the suction port body (3). As shown in FIG. 11, a suction pipe (2) is connected to the vacuum cleaner main body (1), and a suction port body (3) is connected to a distal end thereof for use. A rotary brush (4) that rotates around a horizontal axis is provided inside the suction opening body (3) as shown in FIG. (f) is hit, and the suction of dust and the like becomes good.

The configuration of the rotating brush (4) is disclosed in Japanese Patent Application Laid-Open No. H6-125811, etc., and an example of the configuration is schematically shown in FIG. A brush material thread (101) composed of a synthetic fiber thread or the like is arranged side by side in one direction, a blade (102) is arranged so as to sandwich the thread, and sewn at a predetermined location (103). Is obtained. When the two brush assemblies (100) are inserted into the respective grooves (104a) of the rotating brush main body (104) and locked, a rotating brush (4) is obtained. As a brush assembly (100) constituting the rotary brush (4), another configuration is disclosed in Japanese Patent Application Laid-Open No. 11-169326, and FIG. A brush material thread (101) is arranged side by side in one direction around the core material (106), and a cover tube (105) is externally fitted and welded to a root portion of the brush material thread (101). When the blade (102) is formed and fixed by a molding die so as to wrap the cover tube (105), and inserted into the groove (104a) of the rotating brush body (104) in the same manner as described above, the rotating brush (4) Is obtained.
JP-A-6-125811 JP-A-11-169326

However, in the configuration of the sewing operation as described above, it is necessary to prevent the brush material thread (101) from causing positional deviation, entanglement, bending, and the like. The sewing work for that requires extremely skill, and a skilled worker is required. In addition, in the case of a configuration in which a molding die is used, a high-level technique for insert-molding a brush body, particularly a bristle portion, is required in addition to a molding machine. Therefore, there is a problem that a special worker for a special molding operation is required, and a molding die is required for each fixed size, which is not suitable for various types of production.

The present invention has been made in view of such a situation, and does not require a sewing operation of a brush material thread or a special forming operation, and can easily cope with various types of production, improve production efficiency, and reduce production costs. It is an object of the present invention to provide a brush assembly and a rotating brush for a vacuum cleaner, which can reduce the cost.

In order to achieve the above object, according to the present invention, in a brush assembly for a vacuum cleaner comprising a brush body having a plurality of brush material yarns and a blade holding the brush body, the blade is made of an elastic resin. The brush body is formed separately from the brush body, detachably holds the brush body, has a gap between the brush body and a tip portion of the brush body, and a root portion abuts on the brush body so that the brush body is in contact therewith. The body is inserted.

ブ ラ シ In this brush assembly, since the brush body and the blade are formed separately, the sewing of the brush material thread and the special forming work are not required when forming the brush body. Further, since the blade has elasticity, it is easy to mount the brush body on the blade, and the elasticity contributes to holding the brush body and maintaining the brush material thread in the upright posture. Further, since the blade sandwiches the root portion of the brush body and is separated from the bristle tip portion, when the blade and the brush body bend, there is little influence on each other.

In order to achieve the above object, the present invention also provides a vacuum cleaner comprising: a brush body having a plurality of brush material threads; a blade holding the brush body; and a rotating brush main body holding and rotating the blade. In the rotating brush, the brush body and the blade are provided with the brush assembly described above, and the blade has a pair of grooves on an outer surface that sandwich a portion where the blade abuts a root portion of the brush body, and the rotating brush body includes: The blade is inserted into a pair of grooves of the blade to hold the blade.

回 転 In this rotary brush, the portion of the blade that holds the brush body is held by the rotary brush body. For this reason, while the blade has elasticity, the portion where the brush body is sandwiched is pressed by the rotating brush main body and is prevented from spreading.

Since the brush assembly of the present invention has a configuration in which the blade and the brush body are individually formed and the brush body is detachably held on the blade, sewing and special forming work of the brush material thread are unnecessary. Therefore, it is possible to easily cope with various kinds of production, improve production efficiency, and reduce production cost. In addition, since the blade has elasticity, the brush body can be easily mounted on the blade. Further, the brush body can be reliably held by the elasticity of the blade, and the standing posture of the brush material thread can be held. Further, since the blade sandwiches the root portion of the brush body and is separated from the bristle tip portion, the blade and the brush body can have high bending performance while reliably holding the brush body by the blade.

In the rotating brush of the present invention, the portion of the blade that holds the brush body is held by the rotating brush body, so that while the blade has elasticity, the portion that holds the brush body is It is held down by the rotating brush body and is prevented from spreading. Therefore, the holding of the brush body by the blade is ensured.

Hereinafter, an embodiment of a brush assembly for a vacuum cleaner and a rotating brush according to the present invention will be described with reference to the drawings. The present embodiment is characterized by the structure of the brush body and the like, and the other structure is the same as that of the conventional example (FIGS. 11 and 12). Therefore, the same reference numerals are given to the same parts as those in the conventional example, and the detailed description will be appropriately omitted.

FIG. 1 is a cross-sectional view showing the schematic structure of the suction port body (3) on which the brush assembly (5) is mounted, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. A rotating brush (4) is provided inside the suction body (3) of the vacuum cleaner (FIG. 1), and the rotating brush (4) is composed of a rotating brush body (41) and two brush assemblies (5). (FIG. 2). The rotating brush (4) has a structure in which a brush assembly (5) is inserted into a rotating brush body (41). Both ends are sandwiched by pulleys (42) locked to the rotating brush body (41), and the pulleys (42) locked to both ends of the rotating brush body (41) are sucked by bearings (43) composed of bearings and the like. It is rotatably supported in the mouth body (3).

FIG. 3 shows an assembly configuration of the brush assembly (5), and FIG. 4 shows an assembly configuration of the rotating brush (4). FIG. 7 shows a vertical sectional structure of the brush assembly (5). The brush assembly (5) includes a brush body (7) having a plurality of brush material threads (71), and a blade (6) holding the brush body (7). Then, as shown in FIG. 3, the blade (6) and the brush body (7) are individually formed, and the brush body (7) is detachably held to the blade (6) as described later. FIG. 5 shows a longitudinal sectional structure of the brush body (7), and FIG. 6 shows a longitudinal sectional structure of the blade (6). The cross section of the blade (6) has a substantially U-shape, and the brush body (7) has a core material (72) for fixing a brush material thread (71) at a root portion. The brush material thread (71) may be composed of a single thread or a combination of a plurality of threads.

The blade (6) is formed of a resin having flexibility and elasticity (a soft vinyl chloride material, a rubber material, etc.). A groove (6a) that engages with a gap (Q; see FIG. 7) with the core material (72) is formed at the bottom thereof, and the outer surface of the blade (6) is formed as shown in FIG. A groove (6b) that engages with the rotating brush body (41) is formed. Each groove (6a, 6b) has both ends opened in the longitudinal direction. Since the blade (6) is formed of an elastic resin, it is easy to store and transport after the elongate molding, and it is also possible to easily insert the brush body (7). Further, the brush body (7) can be reliably held by the elasticity of the blade (6), and the brush material thread (71) can be held in the upright posture.

As shown in FIG. 5, the brush body (7) has a configuration in which brush material threads (71) are planted in a substantially U-shape so as to penetrate the core material (72) and to be arranged side by side in one direction. . The core material (72) is formed by cutting a thin plate (for example, a plate having a thickness of 0.3 to 1.0 mm) made of a resin material (Tetron (registered trademark), polypropylene, nylon, or the like) into a long length or by extrusion. Further, it may be formed with a knitted fabric made of a resin thread (tetron, polypropylene, nylon, etc.). By configuring the core material (72) in this manner, the sewing needle or the like can be easily penetrated, so that the brush material thread (71) can be continuously and easily implanted with the sewing needle or the like, and the required length can be obtained. It can be easily cut. Further, the core material (72) has a width w2 (see FIG. 5) larger than the width w1 (see FIG. 7) when the substantially U-shaped brush material thread (71) is shifted. Thus, when the brush body (7) is inserted into the blade (6), the brush body (7) can be reliably held by the blade (6). Also, as shown in FIG. 5, if the coating (73) is applied to the flocked portion of the core material (72) with an adhesive or the like, the fastening between the brush material thread (71) and the core material (72) can be more reliably performed. .

As shown in FIG. 3, the brush body (7) and the blade (6) are each formed into a long shape, and cut into necessary lengths (each time, a long object is cut into a required size during production and used). When the core material (72) of the brush body (7) is inserted into the groove (6a) of the blade (6), the brush body (7) can be attached to and detached from the blade (6) at the core material (72) (and thus can be removed) Thus, a brush assembly (5) having a structure in which the brush body (7) is sandwiched between the blades (6) is obtained (see FIG. 7 and the like). At this time, the core material (72) of the brush body (7) may be inserted into the groove (6a) from the end of the blade (6), but the convex portion (6g) is pushed out and the brush ( The body (7) may be inserted and incorporated.

As described above, the brush assembly (5) is configured so that the brush body (7) is detachably sandwiched by the core (72) with respect to the blade (6) having a substantially U-shaped cross section. The sewing operation and the special forming operation of the brush material thread (71) are unnecessary, and the brush body (7) and the blade (6) can be easily combined. In addition, since the blade (6) and the brush body (7) are formed individually, they can be individually replaced and repaired, so that they can easily cope with various types of production, improve production efficiency, and reduce production costs. Cost reduction is possible.

溝 As shown in FIG. 7, the groove (6a) is provided with a convex portion (6h) facing the core material (72), and engages with the core material (72) with a gap (Q). Similarly, a projection (6j) is provided to hold the core (72). Since the core (72) is partially held by the convex portions (6h, 6j), it is easy to insert the core by hand, and even if the core (72) or the blade (6) is deformed or warped. Smooth insertion becomes possible. Further, since there is a gap (Q), the brush body (7) is held movably in the Z direction or the anti-Z direction within the blade (6). The blade (6) has a gap (S) between itself and the bristle tip of the brush body (7), and abuts against the root of the brush body (7) to clamp the brush body (7). I do. In other words, the U-shaped side pieces (6c, 6d) sandwich the brush material thread (71) to prevent it from falling down and being damaged, and at the same time, are formed at a position where the brush material thread (71) abuts near the root. The convex portion (6f) presses and sandwiches the brush material thread (71). With this configuration, the blade (6) and the brush body (7) can be reliably held, and the bending performance of each other can be improved.

As shown in FIG. 4, the rotating brush body (41) is provided with a plurality of grooves (41a) that can be engaged with the grooves (6b) of the blade (6). Inserted by work. When the convex portion (6f) is provided at the same level position as the groove (6b), the groove (6b) is pressed by the groove (41a) of the rotating brush main body (41), so that the convex portion (6f) does not spread and is sure. Can hold the brush material thread (71). Then, the brush assembly (5) is held by holding both ends of the rotary brush body (41) between the pulleys (42) (FIG. 1).

The rotating brush (4) assembled as described above is rotatably mounted in the suction port (3) as shown in FIG. 2, and is rotated by an electric motor or a turbine (not shown). When the brush assembly (5) is driven to rotate, the tip of the brush assembly (5) hits the floor (f) of a carpet, tatami mat, flooring or the like to efficiently guide dust into the suction opening body (3), and to move the brush body (7). ) Will polish the floor (f). Since there is a gap (S) between the blade (6) and the brush material thread (71) as shown in FIG. 7, the tip of the brush assembly (5) is placed on the floor (f) as shown in FIG. Can be smoothly bent without interference with each other.

The blade (6) has side pieces (6c, 6d) extending to near the bristle tip of the brush body (7), as shown in FIG. Since the side pieces (6c, 6d) of the blade (6) extend to the vicinity of the tip of the brush body (7), the brush body (7) is held to prevent it from falling down and to protect it, and the floor surface (f) ) Can efficiently guide garbage such as hair and thread into the suction port body (3), and at the same time as cleaning, hit the surface of a carpet or the like to drive out dust. Further, the side piece (6c, 6d) of the blade (6) may be one side depending on the use condition, for example, only the side piece (6d) on the floor (f) side in FIG. 2 and the side piece (6c) may be short. . Thus, the blade (6) can be formed with a small amount of material, and thus the brush assembly (5) can be made inexpensive.

As shown in FIG. 7, since the core (72) and the groove (6a) engage with a gap (Q), the distance from the rotation center of the rotating brush (4) to the bristle tip can be changed. The brush body (7) moves in the Z direction (or the anti-Z direction) within the blade (6). Thereby, when resistance occurs to the rotation of the rotating brush (4) due to the environment of the floor surface (f) (for example, uneven carpet or tatami mat, presence of foreign matter, etc.), the tip of the brush body (7) moves in the anti-Z direction. Will move. That is, the distance from the center of rotation of the rotating brush (4) to the tip of the bristle can be reduced to reduce rotation resistance. Also, since the protruding portion (6g) is provided at the tip of the blade (6) (FIG. 6 and the like), when the floor surface (f) is a carpet or the like, the protruding portion (6g) is And the dust in the carpet can be efficiently scraped off. Also, if silicon or wax material for floor polishing is mixed into the brush material thread (71) (for example, it is contained inside), or if the surface of the brush material thread (71) is coated, cleaning will be performed on the floor at the same time. A waxing operation can be performed.

構成 The structure of the brush body (7) formed by combining the brush material thread (71) and the core material (72) is not limited to that shown in FIG. For example, the core material (72) may have a shape other than a plate shape, and has a shape (for example, a circle, an ellipse, a triangle, etc.) that holds the brush material thread (71) and is not easily detached by being sandwiched between the blades (6). Any shape may be used as long as the width w2 (FIG. 5) is larger than the width w1 (FIG. 7). 8 to 10 show other examples of the brush body (7). However, the same or corresponding parts as those of the brush body (7) shown in FIG. The brush body (7) shown in FIG. 8 is obtained by placing a brush material thread (71) on a core material (72) and fixing the center thereof with a fixing member (8). The brush body (7) shown in FIG. 9 is obtained by winding a brush material thread (71) around a core material (72) having a substantially circular cross section in a U-shape, and fixing the follicle portion with an adhesive or the like. The brush body (7) shown in FIG. 10 is obtained by implanting a plurality of rows of U-shaped brush material threads (71) in the longitudinal direction of a core material (72). By using these brush bodies (7) according to the purpose, the productivity can be further improved.

The features of the brush assembly (5) described above are not limited to the brush assembly (5) mounted on the rotating brush (4). For example, as shown in FIG. The same effect can be obtained even when adopted in the brush assembly (Y) provided in the above. The above-described suction port body (3), rotating brush (4), brush assembly (5) and the like show one embodiment of the present invention, and may be variously modified without departing from the gist of the present invention. It is possible to carry out the present invention with modifications.

BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing which shows schematic structure of the suction opening body which mounted the brush assembly which concerns on one Embodiment of this invention. FIG. 2 is a sectional view taken along line AA of FIG. 1. FIG. 3 is an exploded perspective view showing an assembly configuration of the brush assembly. FIG. 2 is an exploded perspective view showing an assembly configuration of the rotating brush. FIG. 3 is a longitudinal sectional view showing a brush body. FIG. 4 is a longitudinal sectional view showing a blade. FIG. 4 is a longitudinal sectional view showing a brush assembly. Sectional drawing which shows the other example of a brush body. Sectional drawing which shows the other example of a brush body. Sectional drawing which shows the other example of a brush body. The perspective view which shows the conventional example of a vacuum cleaner. Sectional drawing which shows the suction opening body which comprises the electric vacuum cleaner of FIG. FIG. 4 is an exploded perspective view showing a conventional example of a rotating brush mounted on a suction port body. FIG. 6 is an exploded perspective view showing a conventional example of a brush assembly constituting a rotary brush.

Explanation of reference numerals

1 Vacuum cleaner body 2 Suction pipe 3 Suction mouth body 4 Rotary brush 41 Rotary brush body 5 Brush assembly 6 Blade 6c, 6d Side piece 7 Brush body 71 Brush material thread 72 Core material

Claims (2)

A brush assembly for a vacuum cleaner comprising a brush body having a plurality of brush material threads and a blade holding the brush body,
The blade is made of an elastic resin, is formed individually with the brush body, holds the brush body detachably, and has a gap between the brush body and the bristle tip portion inside the blade body. A brush assembly for a vacuum cleaner, wherein a root portion is in contact with and the brush body is sandwiched. In a rotary brush of a vacuum cleaner comprising a brush body having a plurality of brush material yarns, a blade holding the brush body, and a rotary brush body holding and rotating the blade.
The brush assembly according to claim 1 as the brush body and the blade,
The blade has a pair of grooves on the outer surface sandwiching a portion where the blade abuts on a root portion of the brush body,
The rotating brush of a vacuum cleaner, wherein the rotating brush body is inserted into a pair of grooves of the blade to hold the blade.

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