JP4986716B2 - Car wash machine washing brush and car wash machine - Google Patents

Description

  The present invention relates to a washing brush for a car wash machine used in a car wash machine for washing dirt or the like adhering to a surface to be washed of an automobile or a vehicle, and a car wash machine equipped with the washing brush for the car wash machine. .

  Washing brush bristle used in a car washing machine for washing dirt or the like adhering to the surface to be washed of an automobile or vehicle, washing brush with the bristle attached to the shaft, and car wash equipped with the washing brush As for the machine, various improvements are made according to the purpose of use. For example, it is a bristle material for a brush for a car wash machine, and has a core part extending in the longitudinal direction and spaced from the core part in the circumferential direction. A plurality of wings that are curved in the circumferential direction and extend integrally, and each of the wings includes a curved surface that curves in the same direction, and the convex curved surface serves as a contact surface to the vehicle body surface. A bristle material for a brush for a car wash machine (Patent Document 1) is devised.

Further, the rigidity degree of foam yarns forming a cross-section of the branch shape made of a thermoplastic resin ^{1200kg / cm 2 ~5000kg / cm 2} , wherein the expansion ratio is 1.1 to 1.7 times There is a foam yarn for rotating brush (Patent Document 2).

JP 2002-321601 A Japanese Examined Patent Publication No. 6-21371

  The bristle material of the brush for car wash machines of patent document 1 is the non-foaming thread | yarn formed in the elongate shape by extrusion molding of thermoplastic resins, such as polyethylene. Therefore, a brush for a car wash machine constructed by planting a large number of the bristle material in the length direction and circumferential direction of the rotating shaft has a strong bristle of bristle material and a high contact pressure against the surface to be cleaned. Since the bristle material can be brought into contact, it has high cleaning performance. However, since the bristle material is a non-foamed yarn and has high hardness and is hard, there is a problem that when the hair material comes into contact with the surface to be cleaned, a flaw is easily attached to the surface to be cleaned. In particular, along with the recent increase in the gloss of the surface to be cleaned, such as metallic coating with fine aluminum pieces and pearl coating with fine mica pieces, the material to be cleaned is made of hard non-foamed yarn as described above. Scratches on the surface are conspicuous and become a problem.

  The foamed yarn for rotating brushes of Patent Document 2 has a long shape similar to the non-foamed yarn shown in Patent Document 1, and is a foamed yarn obtained by foaming and extruding a polyolefin-based thermoplastic resin such as polyethylene. Therefore, the foamed yarn has a lower hardness than the non-foamed yarn and is flexible, so that even if the foamed yarn comes into contact with the surface to be cleaned, it is difficult to attach a flaw. However, since the foamed yarn is flexible, the fluff is very weak and easily wound around the rotating shaft as the rotating brush rotates. For this reason, since the working radius of the rotating brush is reduced, there is a problem that unwashed parts are easily generated and the washing performance is inferior.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and provides a washing brush for a car wash machine that exhibits excellent washing performance without causing scratches caused by the brush bristle material on the surface to be washed, and the washing for the car wash machine. The purpose is to provide a car wash machine equipped with a brush.

  In order to solve the above-mentioned conventional problems, the washing brush for a car wash machine according to the first aspect of the present invention is for a car wash machine used for a car wash machine for washing dirt or the like adhering to an automobile or a surface to be washed of a vehicle. In the cleaning brush, the cleaning brush for a car wash machine includes a brush bristle material and a shaft body, and the brush bristle material is formed on an outer peripheral portion of the shaft body, and has an outer layer portion and a core portion having different hardness. The outer layer portion has a hardness smaller than the hardness of the core portion, and is formed by covering a part or all of the outer peripheral surface of the core portion. Thus, the bristle material for brushes has high hardness, and the soft outer layer portion comes into contact with the surface to be cleaned while holding the hair and waist with the hard core portion. Therefore, the bristle material for the brush can maintain the working radius without being wound around the shaft body when the washing brush for the car wash machine is rotated because the bristle waist is held by the hard core part. No washing residue occurs and excellent cleaning performance is exhibited. Further, even if the contact pressure is increased with respect to the surface to be cleaned and the bristle material for brush comes into contact with the surface to be cleaned, the soft outer layer portion comes into contact with the surface to be cleaned.

  In addition, hardness represents the hardness of a substance and is the hardness measured by the durometer hardness test described in the hardness test method of JISK6253 vulcanized rubber and thermoplastic rubber. The hardness of the outer layer portion is preferably set to 40 ° or more and less than 70 °, and the hardness of the core portion is preferably set to 70 ° or more and 90 ° or less. If the hardness of the outer layer is less than 40 °, it is too soft and wears easily when it comes into contact with the surface to be cleaned. It is inferior in durability, and if it is 70 ° or more, it is too hard to cause scratches on the surface to be cleaned. It becomes easy to let you. When the hardness of the core is less than 70 °, it is too soft and it is difficult to impart strong bristle to the brush bristle material. When it exceeds 90 °, it is too hard and repeats contact with the surface to be cleaned. Then, the hair breaks early and the durability is inferior.

  The washing brush for a car wash machine of the invention of claim 2 is particularly the car brush washing brush of the invention of claim 1, wherein the outer layer part constituting the bristle material for the brush has a thermoplastic resin and / or a thermoplastic elastomer. Since the outer layer portion is formed of a foam and the outer layer portion is a foam having excellent flexibility, the intact performance when the brush bristle material comes into contact with the surface to be cleaned is improved. The expansion ratio is preferably set to 3 times or less. If the expansion ratio exceeds 3 times, foaming defects are likely to occur during production of the brush bristle material, resulting in a decrease in strength of the brush bristle material and poor durability.

  Examples of the thermoplastic resin include polyolefin-based thermoplastic resins such as polyethylene, ethylene vinyl acetate, ethylene methyl acrylate, ethylene ethyl acrylate, ethylene butyl acrylate, polypropylene, and polystyrene.

  Examples of the thermoplastic elastomer include ethylene-α olefin copolymer elastomer, ethylene-α olefin crosslinked copolymer elastomer, and styrene / ethylene block copolymer elastomer.

  The above thermoplastic resins and thermoplastic elastomers may be used alone or in combination. The blending of a thermoplastic resin and a thermoplastic elastomer is generally called a polymer alloy. When the thermoplastic resin is used alone, the expansion ratio is more than 2 times to 3 times or less, and when the thermoplastic elastomer is used alone, the expansion ratio is more than 1 time and less than 1.2 times. In this case, the expansion ratio is desirably 1.2 times or more and 2 times or less. When the thermoplastic resin is used alone, when the expansion ratio is 2 times or less, it is too hard to easily cause scratches on the surface to be cleaned. When the thermoplastic elastomer is used alone, when the expansion ratio is 1.2 times or more, it is too soft, easily worn, and inferior in durability.

  Thermoplastic elastomers have both a soft segment (soft phase) that is a rubber component having elasticity in the molecule and a molecular constraint component to prevent plastic deformation, that is, a hard segment (hard phase) that is a resin component. When the resin component that is the hard segment is polymerized, the rubber component that is the soft segment is also polymerized at the same time, and has both functions of a synthetic resin and a synthetic rubber. Therefore, the thermoplastic elastomer is softer than the thermoplastic resin, so when used alone or when polymer alloyed, it is used with lower foaming than when the thermoplastic resin is used alone. Is done.

  The washing brush for a car wash machine according to a third aspect of the invention is, in particular, the washing brush for a car wash machine according to the first or second aspect, wherein the core part constituting the bristle material for the brush is a thermoplastic resin and / or a thermoplastic elastomer. Since the core is a non-foamed body with excellent rigidity, the bristle of the bristle material for the brush can be set strongly, so that the cleaning performance is improved. .

  The thermoplastic resin and the thermoplastic elastomer can be the same as the thermoplastic resin and the thermoplastic elastomer shown in the washing brush for a car wash machine of the invention of claim 2, and can be used alone or Used together.

  The washing brush for a car wash machine according to a fourth aspect of the invention is particularly the washing brush for a car wash machine according to any one of the first to third aspects, wherein the brush bristle is formed with a subdivided portion at the end in the longitudinal direction. Therefore, the finely divided portion comes into contact with the fine uneven portion of the surface to be cleaned, and the dirt adhering to the uneven portion is scraped, so that the cleaning performance is greatly improved.

  The cleaning brush for a car wash machine of the invention of claim 5 is the cleaning brush for a car wash machine of any one of claims 1 to 4, wherein the brush bristle material is sandwiched and folded between the core wire and the belt-like body. The formed channel brush is formed on the outer periphery of the shaft body, and the channel brush is fixed to the shaft body by a locking tool. Therefore, the workability is improved because a channel brush is formed and fixed to the outer peripheral surface of the shaft body with a locking tool. This leads to a reduction in the production cost of the washing brush for car wash machines.

  The car wash machine of the invention of claim 6 comprises a drive source, a nozzle for spraying cleaning agent and cleaning water sprayed on the surface to be cleaned, and a drying means for drying the surface to be cleaned after cleaning. Car wash machine cleaning brush according to any one of 5 and equipped with a car wash machine cleaning brush having excellent cleaning performance without causing scratches on the surface to be cleaned. The machine sets the washing brush for the car wash machine at a low speed by the driving source, and even when the washing time is set to a short time, generation of unwashed is prevented and excellent washing performance is exhibited. Further, even when rotated at a high speed, scratches are not attached to the surface to be cleaned.

  In the washing brush for a car wash machine according to the first aspect of the invention, since the bristle material for the brush contacts the surface to be cleaned by the soft outer layer portion while holding the fur waist by the hard core portion, scratches are attached to the surface to be cleaned. Excellent cleaning performance can be demonstrated without causing

  In the washing brush for a car wash machine according to the second aspect of the invention, since the outer layer part constituting the bristle material for the brush is a flexible foam, the intact performance when the bristle material for the brush contacts the surface to be cleaned is improved. To do.

  In the washing brush for a car wash machine according to the invention of claim 3, since the core part constituting the bristle material for the brush is a hard non-foamed material, the bristle of the bristle material for the brush is strongly set, and the surface to be washed The cleaning performance is improved.

  In the washing brush for a car wash machine according to the fourth aspect of the present invention, the dirt adhering to the fine uneven portions of the surface to be cleaned is scraped out by the finely divided portion, so that the cleaning performance is greatly improved.

  The washing brush for a car wash machine of the invention of claim 5 leads to a reduction in the production cost of the washing brush for the car wash machine, and can provide the washing brush for the car wash machine at a low cost.

  The car wash machine of the invention of claim 6 sets the washing brush for the car wash machine at a low speed by the drive source, and even when the washing time is set to a short time, the occurrence of unwashed is prevented and excellent washing performance is achieved. Demonstrated. Further, even when rotated at a high speed, scratches are not attached to the surface to be cleaned.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

Example 1
1A is a front view of a washing brush for a car wash machine of the present invention, FIG. 1B is a cross-sectional view of a channel brush, and FIG. 2A is a perspective view of a brush piece viewed from the front side, 2B is a cross-sectional view taken along the line AA of FIG. 2A, and FIG. 3 is a perspective view of the shaft body to which the locking member constituting the washing brush for a car wash machine of the present invention is fixed viewed from the front side. FIG. 4 and FIG. 4 are perspective views of the manufacturing state of the channel brush as viewed from the front side.

  1 (a) and 1 (b), a washing brush 1 for a car wash machine has a long shape formed by sandwiching a bristle material 2 for a brush with a core wire 7 and a belt-like body 8 and folding them. The channel brush 9 is spirally wound around the outer peripheral portion of a substantially cylindrical shaft body 3 made of a metal material such as aluminum or iron, or a synthetic resin material such as vinyl chloride or polyacetal. The locking tool 10 is covered and the both ends of the locking tool 10 are fixed to the shaft body 3 with screws 11.

  The core wire 7 constituting the channel brush 9 has a substantially cylindrical shape having a substantially round cross section, and is made of a metal material such as aluminum or iron. Moreover, the strip | belt-shaped body 8 is a long shape which has a substantially U-shaped cross section, and consists of metal materials, such as aluminum and iron. The brush bristle material 2 has an outer layer portion 4 and a core portion 5 and has a long shape in which a subdivided portion 6 is formed at an end portion, and is sandwiched between a core wire 7 and a band-shaped body 8. It is folded so as to have an approximately V-shaped cross section. In the brush bristle material 2, the outer layer portion 4 and the finely divided portion 6 come into contact with the surface to be cleaned along with the rotation of the car brush washing brush 1. The core part 5 does not directly contact the surface to be cleaned, and gives the hair to the brush bristle material 2.

  Next, the brush bristle material 2 will be described in detail with reference to FIG.

  2 (a) and 2 (b), the bristle material 2 for brushes has a long shape having a substantially corrugated cross section formed by covering the outer peripheral surface of the core portion 5 with the outer layer portion 4, and both ends. A subdivision 6 is formed in the part. Since the brush bristle material 2 has a substantially corrugated cross section, the wash water can be temporarily stored in the plurality of curved portions 12 formed on the surface, so that the water retention during the car wash is increased, and the car wash This leads to an improvement in the cleaning performance of the machine cleaning brush 1. The brush bristle material 2 has a thickness of about 0.3 to 3 mm and a width of about 1 to 10 mm. When the thickness is less than 0.3 mm, the durability is poor, and when it exceeds 3 mm, the flexibility is impaired. When the width is less than 1 mm, the fluff is weak, and when it exceeds 10 mm, the flexibility is inferior. Moreover, although the width | variety per length of the bristle formed in the fine division part 6 and length depend on the width | variety and length of the bristle material 2 for brushes, a width | variety is about 0.01-0.5 mm, The length is preferably set to about 10 to 50 mm. When the width is less than 0.01 mm, it is easy to cut and the durability is inferior, and when it exceeds 0.5 mm, the scraping performance of dirt adhering to the fine uneven portions of the surface to be cleaned is inferior. When the length is less than 10 mm, the dirt scraping performance is inferior, and when the length exceeds 50 mm, the fluff is extremely weak. The cross-sectional shape of the brush bristle material 2 is not particularly limited, and may be a substantially round cross-section. For example, the brush bristle material 2 may have an irregular cross-sectional shape such as a cross-shaped cross section, an M-shaped cross section, an N-shaped cross section, or a bowl-shaped cross section. It does not matter.

  The outer layer 4 constituting the brush bristle material 2 is composed of ultra-low density polyethylene, low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene vinyl acetate, ethylene methyl acrylate, ethylene ethyl acrylate, ethylene Blends of polyolefin-based thermoplastic resins such as butyl acrylate, polypropylene, and polystyrene with thermoplastic elastomers such as ethylene-α olefin copolymer elastomer, ethylene-α olefin cross-linked copolymer elastomer, and styrene / ethylene block copolymer elastomer In addition to the polymer alloy, the foamed material is foamed by adding a foaming agent. The expansion ratio is set to 1.2 times or more and 2 times or less. In the case of polymer alloying, the thermoplastic elastomer is desirably blended at 10 parts by weight or less with respect to 100 parts by weight of the thermoplastic resin. If the thermoplastic elastomer is added to the thermoplastic resin in an amount exceeding 10 parts by weight, poor dispersion tends to occur and the durability of the brush bristle material 2 is inferior.

  The foaming agent is not particularly limited as long as it has been conventionally used in the production of foams. For example, sodium bicarbonate, ammonium bicarbonate, azodicarbonamide, benzenesulfonylhydrazide, dinitrosopenta Pyrolytic foaming agents such as methylenetetramine, toluenesulfonyl hydrazide, 4,4-oxybisbenzenesulfonyl hydrazide are preferably used, and the above materials may be used alone or in combination.

  Thermoplastic elastomers have both a soft segment (soft phase) that is a rubber component having elasticity in the molecule and a molecular constraint component to prevent plastic deformation, that is, a hard segment (hard phase) that is a resin component. When the resin component that is the hard segment is polymerized, the rubber component that is the soft segment is also polymerized at the same time, and has both functions of a synthetic resin and a synthetic rubber. For example, ethylene-α olefin copolymer elastomer and ethylene-α olefin crosslinked copolymer elastomer use polyolefin such as polyethylene for the hard segment and ethylene / propylene / diene copolymer (EPDM) for the soft segment. . The styrene / ethylene block copolymer elastomer uses polystyrene for the hard segment and ethylene / butylene for the soft segment.

  On the other hand, the core 5 constituting the brush bristle material 2 is made of ultra-low density polyethylene, low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene vinyl acetate, ethylene methyl acrylate, ethylene ethyl acrylate. Polyolefin thermoplastic resins such as ethylene butyl acrylate, polypropylene and polystyrene, and thermoplastic elastomers such as ethylene-α olefin copolymer elastomer, ethylene-α olefin cross-linked copolymer elastomer, styrene / ethylene block copolymer elastomer It is a non-foamed material that is a polymer alloy by blending. The thermoplastic elastomer is blended at 10 parts by weight or less with respect to 100 parts by weight of the thermoplastic resin.

  Accordingly, the hardness of the core portion 5 is higher than that of the outer layer portion 4 and is hard. The hardness of the outer layer portion 4 is set to 40 ° or more and less than 70 °, and the hardness of the core portion 5 is set to 70 ° or more and 90 ° or less. When the hardness of the outer layer part 4 is less than 40 °, it is too soft and easily wears when it comes into contact with the surface to be cleaned, and is inferior in durability. When it is 70 ° or more, it is too hard and scratches the surface to be cleaned. It becomes easy to adhere. When the hardness of the core part 5 is less than 70 °, it is too soft and it is difficult to impart a strong bristle to the brush bristle material 2, and when it exceeds 90 °, it is too hard to contact the surface to be cleaned. If is repeated, the hair breaks early and the durability is poor.

  Since the outer layer portion 4 and the core portion 5 are formed by polymer alloying a thermoplastic resin and a thermoplastic elastomer, the outer layer portion 4 and the core portion 5 are formed only by the thermoplastic resin. Moreover, the elasticity which was excellent in the bristle material 2 for brushes, ie, a shape restoring force, can be provided. For this reason, the brush bristle material 2 is less likely to have fuzz even if it repeatedly comes into contact with the surface to be washed, and can prevent the occurrence of breakage, breakage, etc. Durability is improved. Moreover, since the cost of the bristle material 2 for brushes can be reduced compared with the case where the outer layer part 4 and the core part 5 are formed only with a thermoplastic elastomer, the production cost of the washing brush 1 for a car wash machine can be reduced. It leads to reduction.

  In addition, the outer layer part 4 and the core part 5 may use a thermoplastic resin or a thermoplastic elastomer alone. The selection of the thermoplastic resin, the thermoplastic elastomer, and the polymer alloy is appropriately determined in consideration of the environment in which the car brush washing brush 1 is used, the cost, and the like.

  The brush bristle material 2 is manufactured by the following procedure. First, two hoppers are prepared. One of the hoppers is mixed with a pellet-like or powder-like thermoplastic resin, thermoplastic elastomer, foaming agent or the like that forms the outer layer portion 4 and heated at a temperature higher than the melting point. And melt. The other hopper is mixed with a thermoplastic resin, a thermoplastic elastomer, or the like that forms the core 5, and is heated and melted at a temperature equal to or higher than the melting point. Next, the outer layer part 4 and the core part 5 are simultaneously extruded and spun through a generally corrugated die having a two-layer structure attached to the tip of the extruder. After extrusion, the film is stretched in the longitudinal direction with a stretching machine while being heated, and after stretching, it is cooled and solidified in a process called annealing, whereby a long monofilament is formed. The manufacturing method as described above is generally called extrusion molding. Next, the obtained monofilament is cut into a desired length, and a predetermined length at both ends in the longitudinal direction of the monofilament is processed by a subdivision machine having a dividing blade and a cutter rotating at a predetermined rotation speed. By doing so, the bristle material 2 for brushes in which the subdivided portions 6 are formed at both ends is manufactured.

  The above-described method of stretching the monofilament in the longitudinal direction is called uniaxial stretching. Uniaxial stretching is a processing method in which stretching stress is applied only in one direction. In the direction parallel to the stretching direction, molecular orientation occurs, so the tensile strength is remarkably improved, but the direction perpendicular to the stretching direction is tensile strength. Therefore, it has a property that it is easy to tear in a direction parallel to the stretching direction. Therefore, the brush bristle material 2 can form the finely divided portions 6. The molecular orientation means that linear molecules are arranged in a certain direction by the action of an external force in a molten or solid state.

  Further, it is also possible to manufacture the brush bristle material 2 by forming the finely divided portion 6 using a cutter, a Thomson type or the like without stretching the filament.

  Next, the manufacturing method of the washing brush 1 for car wash machines is demonstrated using FIG.3 and FIG.4.

  First, as shown in FIG. 3, a locking tool 10 having a plurality of claws 13 is fixed with screws 11 in the vicinity of both end portions of the outer peripheral portion of the substantially cylindrical shaft body 3. Next, as shown in FIG. 4, the substantially central portion of the plurality of brush hair materials 2 having the subdivided portions 6 formed at both ends of the elongated strip 8 having a substantially U-shaped cross section is a strip. 8 is installed on the base 14 so as to be on the top. Next, using the vertical roll 15, the brush bristle material 2 is sandwiched by the core wire 7, and the core wire 7 is pushed into the approximately U-shaped band 8. Next, the belt-like body 8 is caulked from both sides using the horizontal rolls 16 installed on both sides of the belt-like body 8. As a result, as shown in FIG. 1B, a channel in which the substantially central portion of the elongated brush bristle material 2 having the subdivided portions 6 at both ends is sandwiched between the core wire 7 and the belt-like body 8 and folded. A brush 9 is formed.

  Then, the brush bristle material 2 formed at one end of the channel brush 9 is cut off, and the end of the channel brush 9 is formed with claws formed on both sides of the one locking tool 10 shown in FIG. 13 and is fixed by folding the claw 13 inward. Next, while rotating the shaft body 3, the channel brush 9 formed in one long shape is twisted around the outer peripheral portion of the shaft body 3 and spirally wound, and the other of the channel brushes 9 is wound. The brush bristle material 2 formed on the end portion is cut off, and the other end portion of the channel brush 9 is fixed by the claw 13 formed on the other locking tool 10 attached to the outer peripheral portion of the shaft body 3. A washing brush 1 for a car wash machine is manufactured.

  In addition, the method for forming the washing brush 1 for the car wash machine by attaching the brush bristle material 2 to the outer peripheral portion of the shaft body 3 is to spiral the channel brush 9 shown above on the outer peripheral portion of the shaft body 3. In addition to the method of winding and fixing, for example, a plurality of elongated channel brushes 9 are prepared, and the channel brushes 9 are arranged at equal locations on the outer periphery of the shaft body 3, and both ends of the channel brush 9 are arranged. The bristle material 2 for the brush is cut out, and both ends of the channel brush 9 are covered with an approximately Ω-shaped locking tool 10, and the locking tool 10 is fixed with screws 11 to form the cleaning brush 1 for a car wash machine. It doesn't matter. When arranging a plurality of channel brushes 9 on the outer periphery of the shaft body 3, the elongated channel brushes 9 may be arranged in a straight line with respect to the longitudinal direction of the shaft body 3 or twisted to the channel brush 9. And may be arranged in the longitudinal direction of the shaft body 3.

  Further, without forming the channel brush 9, for example, a plurality of holes for planting the brush bristle material 2 are provided on the outer periphery of the shaft body 3, and the brush bristle material 2 is sandwiched between the holes with staples, The brush bristle material 2 is folded in half and driven against the bottom of the hole, and the brush bristle material 2 is fixed to the shaft 3 or the brush bristle material 2 is pressed against the hole with a thin flat plate and brush A flat wire brush or hole for fixing the brush bristle material 2 to the shaft body 3 by folding the bristle material 2 in half and driving the flat plate against the bottom surface of the hole so as to fit the inner peripheral surface of the hole. The brush bristle material 2 is pressed down with a lead-in wire such as nylon, the brush bristle material 2 is folded in half, and the lead-in wire is put on the inner peripheral surface of the shaft body 3 so that the brush bristle material 2 is pivoted. Pull fixed to body 3 Type brush or assembled brush like plurality of through studs brush bristles 2 directly fixed to the outer periphery of the shaft 3, can be employed. The holes as described above may be provided on the outer peripheral portion of the shaft body 3 at equal intervals or in a staggered manner. The hole diameter of the hole is set in a timely manner according to the amount of planted hair of the brush bristle material 2.

  Next, the cleaning performance of the cleaning brush 1 for car wash machines of the present invention and the adhesion of scratches to the surface to be cleaned were tested. The measurement was performed as shown below, and the results are shown in Table 1.

  As Example 1, a plurality of brush hair materials 2 having a substantially corrugated cross section having a thickness of 0.65 mm, a width of 5 mm, and a length of 240 mm were prepared. On both ends of the bristle material 2 for brushes, a finely divided portion 6 made of brush hair having a width of 0.05 mm and a length of 15 mm was formed. Next, the bristle material 2 for brushes was pinched | interposed with the core wire 7 and strip | belt-shaped body 8 which consist of aluminum, and the channel brush 9 which has the bristle material 2 for brushes folded was formed. The bristle material 2 for brush formed on one end of the channel brush 9 is cut out in the vicinity of the strip 8 over the longitudinal direction 50 mm of the channel brush 9 and is made of iron having a diameter of 114 mm and a length of 360 mm. In the vicinity of the end portion of the outer peripheral portion of the substantially cylindrical shaft body 3, it was fixed using a locking tool 10 attached with a screw 11. Then, the channel brush 9 is spirally wound around the outer periphery of the shaft body 3, and the brush bristle material 2 formed on the other end of the channel brush 9 also extends over the longitudinal direction of the channel brush 9 by 50 mm. Then, it was cut off in the vicinity of the belt-like body 8 and fixed with a locking tool 10 to produce one test brush 1 for a car wash machine for testing. The brush bristle material 2 has an elongated shape in which the outer layer portion 4 covers the outer peripheral surface of the core portion 5, and the outer layer portion 4 is 100 parts by weight of linear low-density polyethylene and is an ethylene-α-olefin copolymer. It is a foam of 1.3 times foam containing 5 parts by weight of a polymer elastomer, and the core part 5 is 5 parts by weight of ethylene-α-olefin copolymer elastomer with respect to 100 parts by weight of linear low density polyethylene. It is a blended non-foamed material. The outer layer part 4 had a hardness of 67 ° and the core part 5 had a hardness of 75 °. Moreover, the width | variety of the strip | belt-shaped body 8 was 5 mm, and it wound around the outer peripheral part of the shaft 3 helically, and set the space | interval of the adjacent strip | belt-shaped body 8 to 25 mm.

  As Comparative Example 1, one washing brush for a car wash machine having the same conditions as the washing brush 1 for a car wash machine of Example 1 was manufactured except that a brush bristle material made of non-foamed yarn having low density polyethylene was used. . The hardness of the brush hair of Comparative Example 1 was 80 °.

  As Comparative Example 2, except that a brush bristle material composed of a 1.3-fold foamed yarn in which 5 parts by weight of ethylene-α-olefin copolymer elastomer was blended with 100 parts by weight of ethylene vinyl acetate was used above. One washing brush for car wash machine having the same conditions as the washing brush 1 for car wash machine of Example 1 was manufactured. The hardness of the brush bristle material of Comparative Example 2 was 65 °.

  Next, the washing brush 1 for the test car wash machine according to the first embodiment, the first comparative example, and the second comparative example configured as described above is attached to a rotating test machine and rotated at a constant rotational speed of 240 rpm. On the virtual circle drawn by the tip of the brush bristle material 2 attached by the channel brush 9 to the outer periphery of the shaft 3 rotating at the rotational speed, with a white solid coated steel plate coated with artificial dirt on one side The white solid-coated steel sheet is disposed at a position close to the rotational axis direction of the shaft body 3 by 30 mm from the surface of the shaft body 3 so that the soiled surface faces the shaft body 3, and cleaning water is applied at a spray rate of 6 L per minute. While spraying, the brush bristle material 2 was brought into contact with the dirt surface of the steel sheet for 1 minute to remove the dirt on the steel sheet.

And the brightness of the part which removed the stain | pollution | contamination by the bristle material 2 for brushes in the stain | pollution | contamination surface of a steel plate was measured with the color difference meter NR-1 by Nippon Denshoku Industries Co., Ltd., and the washing | cleaning performance was judged by the following reference | standard.
○ ・ ・ ・ Brightness improvement is +5 or more × ・ ・ ・ Brightness improvement is less than +5

  Next, the test car wash brush 1 of Example 1, Comparative Example 1 and Comparative Example 2 were each attached to a rotating test machine and rotated at a constant rotational speed of 240 rpm, while the black metallic coated steel plate was Prepared and close to the rotation axis direction of the shaft body 3 by 30 mm from the virtual circle drawn by the tip of the brush bristle material 2 attached by the channel brush 9 to the outer periphery of the shaft body 3 rotating at the rotation speed. The black metallic coated steel plate was disposed at a position facing the shaft body 3 and the brush bristle material was brought into contact with the brush body for 30 seconds while spraying cleaning water at a spray rate of 6 L per minute.

And the average roughness of the surface of the steel plate which the bristle material 2 for brush contact | abutted was measured with the surface roughness meter Surftest 301 by Mitutoyo Corporation, and the adhesion of the damage | wound to a to-be-cleaned surface was judged by the following reference | standard.
○ ・ ・ ・ The difference from the average roughness value of the blank was 0.01 μm or less. × ・ ・ ・ The difference from the average roughness value of the blank was over 0.01 μm.

  From the above test results, the washing brush 1 for the car washer of Example 1 constituted the bristle material 2 for the brush against the surface to be washed while holding the fur waist by the hard core portion 5 constituting the bristle material 2 for the brush. Since the soft outer layer portion 4 and the finely divided portion 6 of the brush bristle material 2 come into contact with each other, the brush bristle material 2 does not wrap around the shaft body 3 and maintains the working radius, and the finely divided portion 6 However, the cleaning brush 1 for a car wash machine has an excellent cleaning performance. Further, since the outer layer portion 4 of the brush bristle material 2 is soft, the average roughness of the surface to be cleaned is not different from the blank value even if it comes into contact with the surface to be cleaned. No flaws were found on the surface.

  In the cleaning brush for a car wash machine of Comparative Example 1, the bristle material for brush made of hard non-foamed yarn comes into contact with the surface to be cleaned. Therefore, since the bristle material for brushes can be set in contact with the surface to be cleaned with a strong bristles, the bristle material for brushes does not wrap around the shaft body, maintains the working radius, and subdivides Scrapes dirt adhering to the fine irregularities of the surface to be cleaned, so that the car brush washing brush has excellent cleaning performance. However, since the hard non-foamed yarn is in direct contact with the surface to be cleaned, the average roughness of the surface to be cleaned is different from the blank value by 0.06 μm, and the brush hair material is not attached to the surface to be cleaned. Admitted.

  In the cleaning brush for a car wash machine of Comparative Example 2, the brush bristle material made of soft foamed yarn comes into contact with the surface to be cleaned. Therefore, even when the brush bristle material abuts the surface to be cleaned, the average roughness of the surface to be cleaned is not different from the blank value, and no adhesion of scratches to the surface to be cleaned by the brush bristle material was observed. . However, since the bristle material for brushes is a soft foam yarn, the bristle material for brushes rotates while being wound around the shaft, and the working radius becomes small, so that unwashed residue is generated. Was inferior.

  The operation and action of the washing brush 1 for a car wash machine configured as described above are as follows.

  The washing brush 1 for a car wash machine has a high hardness that constitutes the bristle material 2 for the brush, and the soft outer layer portion 4 comes into contact with the surface to be cleaned while holding the hair and waist by the hard core portion 5. Therefore, the bristle material 2 for brushes maintains the working radius without being wound around the shaft body 3 when the washing brush 1 for car wash machines is rotated because the bristle waist is held by the hard core portion 5. Therefore, no unwashed residue is generated and excellent cleaning performance is exhibited. Further, even if the brush bristle material 2 abuts against the surface to be cleaned with the contact pressure increased, the soft outer layer portion 4 abuts on the surface to be cleaned, so that no scratches are attached to the surface to be cleaned.

  The outer layer portion 4 constituting the brush bristle material 2 is formed of a thermoplastic resin and a polymer-alloyed foam having a thermoplastic elastomer, and the outer layer portion 4 is a foam having excellent flexibility. Therefore, the intact performance when the brush bristle material 2 comes into contact with the surface to be cleaned is improved.

  The core part 5 constituting the brush bristle material 2 is formed of a thermoplastic resin and a polymer-alloyed non-foamed material having a thermoplastic elastomer, and the core part 5 is a non-foamed material having excellent rigidity. Therefore, since the bristle of the bristle material 2 for brushes can be set strongly, the washing performance of the washing brush 1 for car wash machines is improved.

  The brush bristle material 2 has a finely divided portion 6 formed at the end in the longitudinal direction, and the finely divided portion 6 abuts on a fine uneven portion of the surface to be cleaned to scrape dirt. The cleaning performance is greatly improved.

  The brush bristle material 2 is sandwiched between the core wire 7 and the band-like body 8 and is formed on the outer peripheral portion of the shaft body 3 by a channel brush 9 formed by being folded. Therefore, when manufacturing the washing brush 1 for a car wash machine, the channel brush 9 is continuously formed and wound around the outer peripheral surface of the shaft body 3 in a spiral manner. The workability is improved because it is only necessary to fix it with the. For this reason, the production cost of the washing brush 1 for a car wash machine is reduced.

  Moreover, since the bristle material 2 for brushes is attached by being wound around the outer periphery of the shaft body 3 with an inclination angle by the channel brush 9, the water retention of the washing brush 1 for a car wash machine during car washing is increased, Cleaning performance is greatly improved.

(Example 2)
FIG. 5 is a front view of a car wash machine on which the car brush washing brush of the present invention is mounted.

  In FIG. 5, the car wash machine 20 is equipped with the car wash machine cleaning brush 1 of the present invention, and the car wash machine wash brush 1 is rotationally driven by a drive source 17. From the nozzle 18, a cleaning agent, cleaning water, and the like are sprayed on the surface to be cleaned, the dirt attached to the surface to be cleaned is removed by the cleaning brush 1 for the car wash machine, and after washing, the car wash machine 20 is dried. The surface to be cleaned is dried by a dryer 19 as a means.

  The operation and action of the car wash machine 20 configured as described above are as follows.

  Since the car wash machine 20 has the car wash machine cleaning brush 1 having excellent cleaning performance without causing scratches on the surface to be cleaned, the drive brush 17 sets the car wash machine cleaning brush 1 at a low speed. At the same time, even when the cleaning time is set to a short time, generation of unwashed portions is prevented and excellent cleaning performance is exhibited. Further, even when rotated at a high speed, scratches are not attached to the surface to be cleaned.

  The washing brush for a car wash machine according to the present invention is mainly used as a washing brush for a car wash machine mounted on a car wash machine for washing dirt or the like adhering to an automobile or a surface to be cleaned of a vehicle.

(A) Front view of washing brush for car wash machine of the present invention, (b) Cross section of channel brush (A) The perspective view which looked at the brush piece from the front side, (b) AA sectional drawing of Fig.2 (a) The perspective view which looked at the axial body to which the latching tool which comprises the washing brush for car wash machines of this invention was fixed was seen from the front side. The perspective view which looked at the manufacturing state of the channel brush from the front side The front view of the car wash machine in which the washing brush for car wash machines of the present invention is carried

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing brush for car wash machine 2 Brush bristle material 3 Shaft body 4 Outer layer part 5 Core part 6 Subdivision part 7 Core wire 8 Band-like body 9 Channel brush 10 Locking tool 11 Screw 12 Bending part 13 Claw 14 Base 15 Vertical roll 16 Horizontal roll 17 Drive source 18 Nozzle 19 Dryer 20 Car wash machine

Claims (6)

  In a washing brush for a car wash machine used in a car wash machine for washing dirt or the like attached to a surface to be cleaned of an automobile or a vehicle, the washing brush for a car wash machine has a brush bristle material and a shaft, The bristle material for brush is formed on the outer peripheral portion of the shaft body, and is formed in a long shape having an outer layer portion and a core portion having different hardnesses, and the outer layer portion is more than the hardness of the core portion. A washing brush for a car wash machine having a small hardness and being formed by covering a part or all of the outer peripheral surface of the core part.   The washing brush for a car wash machine having the configuration according to claim 1, wherein the outer layer portion constituting the bristle material for the brush is formed of a foam having a thermoplastic resin and / or a thermoplastic elastomer. Cleaning brush for car wash machines.   The washing brush for a car wash machine having the configuration according to claim 1 or 2, wherein the core portion constituting the bristle material for the brush is formed of a non-foamed material having a thermoplastic resin and / or a thermoplastic elastomer. A cleaning brush for car wash machines.   The washing brush for car wash machines which consists of a composition of any one of Claim 1 to 3 WHEREIN: The bristle material for brushes has the subdivision part formed in the end of the longitudinal direction. Cleaning brush.   5. A washing brush for a car wash machine having the structure according to claim 1, wherein a bristle material for the brush is sandwiched between a core wire and a belt-like body and folded to form a shaft body. A washing brush for a car wash machine, wherein the channel brush is fixed to the shaft body by a locking tool.   The car wash according to any one of claims 1 to 5, further comprising a driving source, a nozzle for spraying cleaning agent and cleaning water sprayed on the surface to be cleaned, and a drying means for drying the surface to be cleaned after cleaning. Car wash machine with washing brush for machine.

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