JP2016055386A - brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently manufacture a brush for forming a spiral row along a twist of a metal wire without skill, by firmly holding a brush bristle between the metal wires twisted in a spiral shape.SOLUTION: A brush 1 has a row of at least one brush bristle 5 juxtaposed in a spiral shape along a twist of a metal wire between a plurality of metal wires 2, 3 and 4 continuously twisted in the lengthwise direction. At least one of the plurality of metal wires is composed of a main wire 2 having a groove 2a extending in the lengthwise direction of at least one on the outer periphery. The other metal wire is composed of auxiliary wires 3 and 4 extending in a spiral shape along the groove 2a of the main wire 2. The auxiliary wires 3 and 4 form a regular spiral along the groove 2a of the main wire 2 when twisted together with the main wire 2. The brush bristle 5 is surely held between a surface of the groove 2a and an outer peripheral surface of the auxiliary wires 3 and 4.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a brush having a row of brush hairs arranged in a spiral along a twist of the metal wire between a plurality of metal wires continuously twisted in the longitudinal direction.

2. Description of the Related Art Conventionally, brushes having brush hairs held in a spiral form along twists between twisted metal wires have been used for various purposes such as industrial use, medical use, and consumer use. In this type of brush, the diameter of the metal wire varies from 1 mm or less to 100 mm or more depending on the application, but both are manufactured by the same method.
The most common manufacturing method is to sandwich a bristle material between two leg wires formed by folding one metal wire into a U shape, and clamp the folded portion and the end of the leg wire to make the leg wire This is a method of adding a twist to the wire.
Patent Document 1 discloses a manufacturing method of a brush that polishes the inner peripheral end surface of a magnetic disk substrate in which brush hairs are arranged in a double spiral shape (see FIG. 2B). This polishing brush is configured by sandwiching bristle materials in two rows between each of four metal wires and twisting these metal wires together. In this brush, a spiral formed by a row of bristle materials is a double spiral, and is called a “double spiral brush”.
On the other hand, Patent Document 2 describes a torsion brush in which a metal wire is passed through two cylindrical coils of filaments serving as brush hairs, and the metal wires are twisted together.
Further, in Patent Document 3, shaft members made of metal wires are inserted into two or four spirally wound brush hair fibers, and both shaft members are twisted to form a brush shaft. A method for manufacturing a mascara brush is disclosed (see FIG. 14), in which a large number of loops of fibers are arranged in a spiral, and a spiral groove is formed between rows of adjacent loops.
The brush disclosed in Patent Document 4 includes two elastic wires as brush hairs formed in a cylindrical coil shape, two inner metal wires passed through the ring of each elastic wire, and these inner metals. Two outer metal wires disposed outside the elastic wire ring are twisted together so as to approach the wire and sandwich the coiled elastic wire between the inner metal wire. A large number of loops of the elastic wire are spirally arranged in the longitudinal direction along the twist of the metal wire.

JP 2006-15450 A Utility Model Registration No. 3009324 JP 2006-262984 A Japanese Patent No. 5400984

In the method of manufacturing a brush described in Patent Document 1, when twisting a metal wire, the bristle material needs to be bent in a substantially V shape at the center. However, when a more rigid bristle material is employed depending on the application, the bristle material may not be easily bent. In this case, the strands of the metal wires swell unevenly, and the row of brush hairs cannot be arranged in an orderly manner. Therefore, by applying a strong force to the two metal wires located at the center of the bristle material, it is necessary to fold the bristle material and tightly bond the metal wires while twisting the metal wires. This operation has a problem that it requires skill and is an inefficient operation.
In the method of manufacturing a brush described in Patent Documents 2 and 3, when twisting a metal wire, the fibers of the spiral hair material are in direct contact with each other, so that the other ring is adjacent to each other between adjacent rings. Enters irregularly and the spiral arrangement becomes irregular. This phenomenon is remarkable when the thickness of the fibers of the hair material is different or when the spiral is not in close contact. When using a hair material made of fibers of different materials, a uniform spiral arrangement cannot be obtained.
In the brush described in Patent Document 4, it is necessary to use a special bristle material formed in a coil shape, and there is a problem that it cannot be manufactured using a straight bristle material.
Therefore, the present invention is a brush in which the bristle is firmly held between spirally twisted metal wires and forms a spiral row along the twist of the metal wires, and is efficiently manufactured without skill. It aims to provide what can be done.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
In order to solve the above problems, the brushes 1 and 11 of the present invention are spirally formed between a plurality of metal wires 2, 3 and 4 continuously twisted in the longitudinal direction along the twist of the metal wires. It has at least one row of bristles 5 arranged side by side. At least one of the plurality of metal wires includes the main wire 2 having at least one longitudinally extending groove 2a on the outer periphery. The other metal lines are composed of sub-lines 3 and 4 extending spirally along the groove 2 a of the main line 2. The sub-lines 3 and 4 form a regular spiral along the groove 2 a of the main line 2 when twisted together with the main line 2. The brush bristles 5 are securely held between the surface of the groove 2a and the outer peripheral surfaces of the auxiliary lines 3 and 4.
The brush 21 for solving the other problems of the present invention is a brush 21 having two bristle wires 5 spirally arranged along the twist of the metal wire 23 between two metal wires 23 continuously twisted in the longitudinal direction. Has a row. The two metal wires 23 are each formed of a grooved line having at least one groove 2a extending in the longitudinal direction on the outer periphery. The two grooved lines 23 extend spirally with the grooves 2a facing each other. The bristle material is firmly held at the four points on both edges of the opposed grooves 2a of the two twisted grooved wires 23.

In the brush of the present invention, the bristle is firmly held by the groove of the main line and the auxiliary line along the groove. In addition, the bristles are arranged in an orderly manner along a groove and a subline, forming a spiral row. In the step of twisting the main wire and the sub wire, the sub wire is guided in the groove and twisted in an orderly manner, so that the brush can be manufactured easily and efficiently.
In the other brush of the present invention, the bristle material is firmly held at the four points on both edges of the mutually opposed grooves of the two twisted grooved wires.

It is a front view which shows the brush which concerns on this invention. It is a top view of the brush of FIG. It is a top view which shows the manufacturing process of the brush of FIG. It is a front view which shows the other brush which concerns on this invention. It is a top view of the brush of FIG. FIGS. 5A and 5B show a manufacturing process of the brush in FIG. 4, wherein FIG. 4A is a front view and FIG. It is a front view of the further another brush which concerns on this invention. It is a top view of the brush of FIG. It is a top view which shows the manufacturing process of the brush of FIG.

Embodiments of the present invention will be described with reference to the drawings.
1 and 2, the brush 1 is twisted between one main line 2 made of a metal wire continuously twisted in the longitudinal direction and two sub wires 3 and 4 made of a metal wire. A line of substantially linear brush hairs 5 arranged in a spiral along the line is held.

  As shown in FIGS. 2 and 3, the main line 2 has two grooves 2a extending in the longitudinal direction opposite to the outer periphery. The main line 2 has an eyeglass-shaped cross-sectional outline in which metal wires (round lines) having a substantially circular cross section are connected to each other. That is, the main line 2 has a shape having two round line portions 2b and 2c on both sides of the groove 2a.

  The sub wires 3 and 4 are metal wires having the same diameter and a circular cross-sectional outer shape smaller than the main wire 2. The sub-lines 3 and 4 extend in a spiral shape along each groove 2 a of the main line 2.

  The manufacturing process of this brush 1 is shown in FIG. The sub-lines 3 and 4 are arranged along the groove 2 a of the main line 2, and the bristle material 51 that becomes the bristle 5 is arranged between the main line 2 and the sub-lines 3 and 4. The bristle material 51 is made of a substantially linear filament, and is arranged side by side in the axial direction with its axis line oriented in a direction perpendicular to the axis line of each of the lines 2, 3, 4. In this state, the brush 1 shown in FIGS. 1 and 2 is formed by tightening one end of the main line 2 and the sub-lines 3 and 4 and twisting them integrally around the axis.

  In FIG. 1, sub-lines 3 and 4 are interposed between each row of brush bristles 5. Since the mutual arrangement of the round line portions 2b and 2c of the main line 2 is fixed, the sub-lines 3 and 4 are regularly spiraled along the groove 2a of the main line 2 without coming off between the round line portions 2b and 2c. Twisted. The row of brush bristles 5 is sandwiched between the main line 2 and the sub-lines 3 and 4 and is held in a double spiral shape. By twisting the main line 2 and the sub-lines 3 and 4 together, the bristle material 51 bends along the groove 2a of the main line 2, and is sandwiched between two edges of the groove 2a and the outer periphery of the sub-lines 3 and 4 Is done.

  In addition, the cross-sectional outline of the main line 2 is not limited to a glasses type, and the cross-sectional outline of the sublines 3 and 4 is not limited to a circle.

  Although not shown, a combination of one main line having one groove and one subline along the groove, one main line having three grooves, and three sublines along the groove The brush by various different combinations, such as a combination, can be manufactured based on the same idea as the above embodiment.

  The brush 11 according to another embodiment of the present invention shown in FIGS. 4 and 5 includes one main line 2 made of a metal wire continuously twisted in the longitudinal direction and two sub-lines 3 made of a metal wire. , 4 holds a row of annular brush hairs 5 arranged in a spiral along the twist. The configuration of the main line 2 and the sub-lines 3 and 4 is the same as that of the brush shown in FIGS.

  The manufacturing process of this brush 11 is shown in FIG. The sub-lines 3 and 4 are inserted into the loops of the two bristle materials 52 made of coiled elastic monofilaments to be the brush bristles 5, respectively, so as to be along the grooves 2 a of the main line 2. The hair material 52 may be any of synthetic resin, metal, and natural hair material.

  In this state, the brush 11 shown in FIGS. 4 and 5 is formed by tightening one end of the main line 2 and the sub-lines 3 and 4 and twisting them together around the axis.

  The two sublines 3 and 4 extend in a spiral shape along each groove 2 a of the single main line 2. The row of annular brush bristles 5 is sandwiched between the main line 2 and the sub-lines 3 and 4 and is held in a double spiral shape. By twisting the main line 2 and the sub-lines 3 and 4 together, the bristle material 52 is sandwiched between two edges of the groove 2a and the outer periphery of the sub-lines 3 and 4. This brush has a series of annular bristles 5. The brush 11 is suitable for cleaning a mechanical device that dislikes mixing of foreign matters in the cleaning process because the brush bristles 5 do not fall out of the core wire.

  If necessary, by cutting away a part of the ring of the brush hairs 5, it is possible to form a row of the brush hairs 5 curved in a substantially arc shape. Straight hair can also be obtained by performing heat treatment or the like to correct the curvature.

  Since the bristle material 52 is a series, it is easy to handle. Since the bristle material 52 is previously curved in the direction to be refracted, it is easily refracted by the pressure caused by the twist between the main line 2 and the sub-lines 3 and 4. Therefore, it is possible to easily manufacture a brush in which the twists of the metal wires 2 and 3 are uniform and the rows of the brush hairs 5 are arranged in an orderly spiral.

  7 to 9 show a brush 21 according to still another embodiment. The brush 21 holds a row of brush bristles 5 arranged in a spiral along the twist between two metal wires 22 continuously twisted in the longitudinal direction. The two metal wires 22 are composed of two leg wires formed by folding one metal wire 2 having the same shape as the main line 2 shown in FIGS. 1 to 6 into a U-shape by a folded portion 2d. That is, the metal wire 2 has an outer shape of a cross-sectional glasses type having two grooves 2a extending in the longitudinal direction opposite to each other on the outer periphery and two round wire portions 2b and 2c on both sides thereof.

  In this case, a brush can be manufactured using the existing automatic machine which folds and twists one metal wire. Since the bristle material 51 is clamped at four points, it is held with a stronger clamping force than in the case where the round wire is folded and twisted.

1 Brush 11 Brush 21 Brush 2 Main line (metal wire)
22 Leg wire (metal wire)
2a Groove 2b Round line part 2c Round line part 2d Folded part 3 Sub line (metal wire)
4 Sub wires (metal wires)
5 Brush hair 51 Linear hair material 52 Coiled hair material

Claims (9)

A brush having a row of at least one brush bristle arranged in a spiral along a twist of the metal wire between a plurality of metal wires continuously twisted in the longitudinal direction,
One of the metal wires consists of a main line having a number of longitudinally extending grooves on the outer periphery corresponding to the number of other metal wires,
The other metal line is composed of a sub-line extending spirally along the groove of the main line,
The brush bristle row is held by being sandwiched between the main line and the sub line. A brush having a row of brush hairs arranged in a spiral along the twist of the metal wire between two metal wires continuously twisted in the longitudinal direction,
One of the metal wires consists of a main line having at least one longitudinally extending groove on the outer periphery,
2. The brush according to claim 1, wherein the other metal line is a sub-line extending spirally along the groove of the main line. A brush having a plurality of rows of bristle arranged in a spiral along a twist of the metal wire between a plurality of metal wires continuously twisted in the longitudinal direction,
One of the metal wires consists of a main line having a plurality of grooves extending in the longitudinal direction on the outer periphery,
The other metal wire is composed of a plurality of sub-wires extending spirally along each groove of the main line. A brush having two brush bristle rows arranged in a spiral along the twist of the metal wire between three metal wires continuously twisted in the longitudinal direction,
One of the metal wires consists of a main line having two grooves extending in the longitudinal direction opposite to the outer periphery,
The other two metal wires are sub-lines extending along the grooves of the main line, respectively. A brush having a plurality of rows of brush hairs arranged in a spiral along the twist of the metal wire between two metal wires continuously twisted in the longitudinal direction,
The brush is characterized in that each of the two metal wires comprises a grooved wire having at least one groove extending in the longitudinal direction on the outer periphery, and extends in a spiral shape with the grooves facing each other.   The brush according to claim 5, wherein the two metal lines include two leg lines formed by folding the single grooved line.   The brush according to any one of claims 1 to 5, wherein the brush bristles are substantially linear filaments.   The brush according to any one of claims 1 to 5, wherein the brush bristles are made of a coiled filament that is continuous in a wire extending direction of the metal wire.   The brush according to any one of claims 1 to 5, wherein the brush bristles are formed by cutting a loop of a coiled filament continuous in a wire extending direction of the metal wire.

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