JP4452581B2 - Car wash brush - Google Patents

Description

  The present invention relates to a car wash brush.

  As brushes for car wash, there are those made of synthetic resin monofilament, those made of non-woven fabric (Patent Document 1), and those made of foamed synthetic resin (Patent Document 2).

  A synthetic resin monofilament is applied to the surface of the vehicle body to be washed, and mud, sand or the like may be rubbed against the painted surface of the vehicle body to damage the painted surface.

Therefore, in recent years, those made of non-woven fabric and those made of foamed synthetic resin have come to be frequently used.
Patent 3098630 JP-A-9-285339

A car wash brush made of non-woven fabric has the following problems.
(1) The weight of the brush increases due to the water absorption of the nonwoven fabric, and the load on the rotary motor increases.

  (2) The nonwoven fabric that has absorbed water loses its waist strength and winds around the rotating body that fixes the nonwoven fabric, impairing the cleaning effect.

  (3) In order to prevent water absorption of the nonwoven fabric and ensure waist strength, a part or all of the nonwoven fabric is resin-coated or water-repellent treatment is expensive. The water repellent effect does not last long.

  (4) The nonwoven fabric itself is expensive.

The car wash brush made of foamed synthetic resin has the following problems.
(1) Foamed synthetic resin is harder than non-woven fabrics and does not absorb water like non-woven fabrics. Therefore, the adhesion to the surface of the vehicle body is poor and the cleaning effect is low.

  (2) In order to improve the cleaning effect by bringing the foamed synthetic resin into close contact with the surface of the vehicle body, it is necessary to rotate it higher than a car wash brush made of non-woven fabric.

  The subject of this invention is obtaining the high washing | cleaning effect, aiming at the simple and low cost of the brush for car wash.

The invention according to claim 1 is the brush for car wash in which a large number of brush pieces are fixed to the outer periphery of the rotating body, wherein the brush pieces are intermediate in the length direction along the radial direction of the rotating body from the mounting base fixed to the rotating body. The length of the foamed synthetic resin piece that extends only in the length range up to the part, and the length from the joined part to the distal end in the length direction along the radial direction of the rotating body , joined to the extended end of the foamed synthetic resin piece And a non-woven fabric piece extending only in the range .

  According to a second aspect of the present invention, in the first aspect of the present invention, the brush piece has a corrugated cross section that is folded along a fold line extending from a mounting base portion in a longitudinal direction to a distal end portion.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the rotating body further includes a brush mounting portion along the axial direction at each of a plurality of circumferential positions on the outer periphery, and the plurality of axial positions of each brush mounting portion. The brush piece is fixed to each of the above.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the attachment base portion of the brush piece is riveted to the brush attachment portion of the rotating body.

(Claim 1)
(a) The rigidity of the foamed synthetic resin piece that does not absorb water gives an appropriate repulsion to the nonwoven fabric piece that adheres flexibly to the surface of the vehicle body, and the bulkiness of the brush piece can be secured without increasing the rotational speed. Increase the cleaning effect while reducing damage. Since the nonwoven fabric piece is used only on the side of the tip of the brush piece that contacts the vehicle body and the bulk of the brush piece can be secured by the foamed synthetic resin piece, the amount of the nonwoven fabric piece can be greatly reduced, and the nonwoven fabric piece It is possible to avoid an increase in the weight of the brush piece and an increase in the load on the rotary motor due to the water absorption.

  (b) Since the side of the brush piece that is fixed to the rotating body is made of a foamed synthetic resin piece and no nonwoven fabric piece is provided, even if the absorbed nonwoven fabric loses waist strength, the nonwoven fabric piece to the rotating body Can be avoided.

  (c) It is not necessary to resin-coat part or all of the non-woven piece or to ensure the waist strength by water repellent treatment, and the production cost of the non-woven piece can be reduced.

  (d) Compared to the non-woven fabric piece, the foamed synthetic resin piece, which is less worn and frayed and cheap, can be used, and the amount of the non-woven fabric piece used can be reduced. Therefore, the durability and manufacturing cost of the brush piece can be reduced. Since the amount of the nonwoven fabric piece used can be reduced, the thawing operation time can be shortened even if the nonwoven fabric piece that has absorbed water in a cold region or the like freezes.

(Claim 2)
(e) Since the brush piece has a corrugated cross section obtained by folding the nonwoven fabric piece and the foamed synthetic resin piece, the waist strength of the brush piece can be increased.

(Claim 3)
(f) By fixing the brush pieces at each of a plurality of circumferential positions and a plurality of axial positions on the outer periphery of the rotating body, a large number of brush pieces can be evenly arranged on the outer periphery of the rotating body, and the cleaning effect can be improved.

(Claim 4)
(g) By riveting the attachment base of the brush piece to the brush attachment part of the rotating body, the brush piece can be easily and firmly attached to the rotating body.

  FIG. 1 is a front view showing a car wash brush, FIG. 2 is an arrow view along line II-II in FIG. 1, FIG. 3 shows a brush piece, (A) is a perspective view, (B) is a developed plan view, (C) is a side view, FIG. 4 is a perspective view showing the fixing process of the brush piece to the rotating body, FIG. 5 shows the rotating body, (A) is an end view showing the fixing structure of the brush piece, and (B) is FIG. 6 is a developed view showing an arrangement of brush pieces fixed to a rotating body, FIG. 7 shows a modification of the cleaning brush, (A) is a perspective view showing the rotating body, and (B) is a rotating view. It is an expanded view which shows the arrangement | sequence of the brush piece fixed to the body.

  The car wash brush 10 is used as a top brush, a side brush, or the like of a car wash machine, and is configured by fixing a large number of brush pieces 20 to the outer periphery of a rotating body 11 as shown in FIGS.

  As shown in FIGS. 2, 4, and 5, the rotating body 11 is made of a cylindrical aluminum alloy extruded material, and is axially arranged at each of a plurality of positions that form a constant angular interval along the circumferential direction of the outer periphery. A brush attachment portion 12 is provided. The brush mounting portion 12 projects radial ribs 13 and 13 on both sides in the diameter direction, forms a mounting groove 14 between the radial ribs 13 and 13, and extends along the axial direction of the rotating body 11 at the bottom of the mounting groove 14. A mounting hole 15 for the brush piece 20 is provided at each of a plurality of positions having a constant pitch (for example, 80 mm).

  As shown in FIGS. 3 and 4, the brush piece 20 includes a nonwoven fabric piece 21 and a foamed synthetic resin piece 22. The foamed synthetic resin piece 22 extends from an attachment base fixed to the brush attachment portion 12 of the rotating body 11 to an intermediate portion. The nonwoven fabric piece 21 is joined to the extending end of the foamed synthetic resin piece 22 by sewing (or heat welding or the like), and extends to the front end portion that contacts the surface of the vehicle body and performs a cleaning action.

  The brush piece 20 forms a corrugated cross section that is folded into, for example, four folds along a fold line (mountain fold line 23A, valley fold line 23B) extending from the attachment base in the longitudinal direction to the tip. At this time, the non-woven fabric piece 21 is folded so that the joint portion of the foamed synthetic resin piece 22 is located on the front side in contact with the surface of the vehicle body. The brush piece 20 is bent at the central portion in the longitudinal direction, and has a U shape with the central bent portion as an attachment base.

  The brush piece 20 has a hole 24 in the mounting base, a rivet 25 inserted through the hole 24 is inserted into the mounting hole 15 of the brush mounting portion 12 in the rotating body 11, and the mounting base is riveted to the brush mounting portion 12. To do.

  The non-woven fabric piece 21 constituting the brush piece 20 is an artificial leather based on a non-woven fabric made of polyester or nylon short fibers, has a flexibility that does not damage the surface of the vehicle body, and is used for a long time compared to a long-fiber non-woven fabric. Excellent durability with very little fraying and fuzzing.

  Another foamed synthetic resin piece 22 constituting the brush piece 20 is a closed cell foam mainly composed of an EVA (ethylene vinyl acetate) copolymer, has flexibility and elasticity, and hardly absorbs water. .

  The outer diameter of the car wash brush 10 is 800 mm, the diameter of the rotating body 11 is 80 mm, the width of the brush piece 20 is 80 mm, the touch depth to the body surface is 150 mm, and the sewing allowance of the nonwoven fabric piece 21 and the foamed synthetic resin piece 22 is 50 mm. Then, the size of the brush piece 20, the nonwoven fabric piece 21, and the foamed synthetic resin piece 22 is as follows. The width of the brush piece 20 (nonwoven fabric piece 21, foamed synthetic resin piece 22) is 80 × 4 = 320 mm because the width when folded into a four-fold corrugated cross section is 80 mm. The longitudinal size of the brush piece 20 is 720 mm because the outer diameter of the brush 10 is 800 mm when the brush piece 20 bent in a U-shape is fixed to the outer periphery of the rotating body 11. The size in the longitudinal direction of the non-woven fabric piece 21 is 200 mm obtained by adding a sewing allowance of 50 mm to a touch depth of 150 mm. The longitudinal size of the foamed synthetic resin piece 22 is 420 mm obtained by subtracting the touch depth (150 × 2 = 300 mm) from the total length 720 mm of the car wash brush 20.

  In the car wash brush 10, as shown in FIG. 6, the brush pieces 20 fixed to the brush mounting portions 12 adjacent to each other in the circumferential direction of the rotating body 11 are positioned at the same position in the axial direction of the rotating body 11. They are lined up so that they are positioned in

According to the present embodiment, the following operational effects can be obtained.
(a) The rigidity of the foamed synthetic resin piece 22 that does not absorb water gives an appropriate repulsion to the non-woven piece 21 that adheres flexibly to the surface of the vehicle body, and the bulk of the brush piece 20 can be secured without increasing the rotational speed, Increases the cleaning effect while reducing damage to the car body. Since the non-woven fabric piece 21 is used only on the side of the tip of the brush piece 20 that contacts the vehicle body, and the bulk of the brush piece 20 can be secured by the foamed synthetic resin piece 22, the amount of use of the non-woven fabric piece 21 is greatly increased. Thus, an increase in the weight of the brush piece 20 due to water absorption of the nonwoven fabric piece 21 and an increase in the load on the rotary motor can be avoided.

  (b) Since the side of the brush piece 20 fixed to the rotating body 11 is made of the foamed synthetic resin piece 22 and the non-woven piece 21 is not provided, even if the absorbed non-woven piece 21 loses waist strength, it rotates. Winding of the nonwoven fabric piece 21 around the body 11 can be avoided.

  (c) It is not necessary to resin-coat a part or all of the nonwoven fabric piece 21 or to ensure the waist strength by water repellent treatment, and the manufacturing cost of the nonwoven fabric piece 21 can be reduced.

  (d) Compared with the non-woven fabric piece 21, the use of the foamed synthetic resin piece 22 that is less worn and frayed and is inexpensive, and the amount of the non-woven fabric piece 21 can be reduced, thereby reducing the durability and manufacturing cost of the brush piece 20. it can. Since the amount of the nonwoven fabric piece 21 used can be reduced, the thawing operation time can be shortened even if the nonwoven fabric piece 21 that has absorbed water in a cold district or the like freezes.

  (e) Since the brush piece 20 has a corrugated cross section obtained by folding the nonwoven fabric piece 21 and the foamed synthetic resin piece 22, the waist strength of the brush piece 20 can be increased.

  (f) By fixing the brush pieces 20 at a plurality of circumferential positions and a plurality of axial positions on the outer periphery of the rotating body 11, a large number of brush pieces 20 can be evenly arranged on the outer periphery of the rotating body 11, and the cleaning effect is improved. it can.

  (g) By riveting the attachment base portion of the brush piece 20 to the brush attachment portion 12 of the rotating body 11, the brush piece 20 can be easily and firmly attached to the rotating body 11.

  As shown in FIG. 7, the car wash brush 10 is fixed to the brush mounting portions 12 by shifting the positions of the mounting holes 15 provided in the brush mounting portions 12 adjacent to each other in the circumferential direction of the rotating body 11 by a half pitch (for example, 40 mm). The brush pieces 20 may be arranged in a staggered manner in the axial direction of the rotating body 11. Compared with the arrangement (FIG. 6) in which the brush pieces 20 fixed to the adjacent brush mounting portions 12 are arranged side by side, they contact each other in the axial direction of the rotating body 11 due to the protrusion shape of the vehicle body and the contact with the protrusions. The brush pieces 20 are prevented from cracking, and the occurrence of uneven cleaning is avoided.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention.

FIG. 1 is a front view showing a car wash brush. FIG. 2 is an arrow view taken along line II-II in FIG. FIG. 3 shows a brush piece, (A) is a perspective view, (B) is a developed plan view, and (C) is a side view. FIG. 4 is a perspective view showing a process of fixing the brush piece to the rotating body. 5A and 5B show a rotating body, FIG. 5A is an end view showing a fixing structure of a brush piece, and FIG. FIG. 6 is a development view showing the arrangement of the brush pieces fixed to the rotating body. FIG. 7 shows a modification of the cleaning brush, (A) is a perspective view showing a rotating body, and (B) is a developed view showing an arrangement of brush pieces fixed to the rotating body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Car-washing brush 11 Rotating body 12 Brush attachment part 20 Brush piece 21 Non-woven piece 22 Foamed synthetic resin piece It is not restricted, A design change etc. of the range which does not deviate from the summary of this invention are included in this invention. .

Claims (4)

In a car wash brush in which a large number of brush pieces are fixed to the outer periphery of the rotating body,
The foam piece extends only from the attachment base fixed to the rotating body to the intermediate portion in the longitudinal direction along the radial direction of the rotating body, and the foam synthetic resin piece extends. A brush for car washing, comprising: a non-woven fabric piece bonded to an end and extending only in a length range from the bonded portion to a distal end portion in a length direction along a radial direction of the rotating body .   The car wash brush according to claim 1, wherein the brush piece has a corrugated cross section formed by folding along a fold line extending from a longitudinal mounting base to a tip portion.   The said rotary body is provided with the brush attachment part which follows an axial direction in each of the circumferential direction multiple position of an outer periphery, The said brush piece is fixed to each of the multiple axial position of each brush attachment part. The car wash brush described.   The car wash brush according to any one of claims 1 to 3, wherein an attachment base portion of the brush piece is riveted to a brush attachment portion of a rotating body.

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