JP2005170072A - Brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily attach a folded part of a brush single body clamping a core material and to ensure slip-off locking in a brush. <P>SOLUTION: In the brush 10, mounting grooves 12 having narrow openings 13 are formed at a plurality of circumferential positions of the outer periphery of a rotation shaft 11, the core material 22 is inserted into the folded part 21A of the brush single body 21 and the core material 22 is attached to a mounting groove of the rotation shaft 11 and the folded part 21A of the brush single body 21. A hub 30 engageable with the end of the core material 22 attached to the mounting groove 12 of the rotation shaft 11 and preventing the slip-off of the core material 22 from the mounting groove 12 is mounted to the end surface of the rotation shaft 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a brush suitable for use in a car wash machine or the like.

As described in Patent Document 1, as a car wash brush, mounting grooves having narrow openings are provided at a plurality of circumferential positions on the outer periphery of the rotating shaft, and a core material is sandwiched between two folded portions of the brush alone, Are fitted into the mounting groove from the opening of each mounting groove provided on the outer periphery of the rotating shaft together with the double-folded portion of the brush alone.
Reality 2-2-2773 (1 page, Fig. 3)

  In the car wash brush of Patent Document 1, the folded portion of the brush itself is fitted into the mounting groove of the rotating shaft together with the core material. In the case of facilitating the joint work, there is a disadvantage that the fitting strength is weakened.

  SUMMARY OF THE INVENTION An object of the present invention is to make it possible to easily insert a double-folded portion of a brush with a core material sandwiched into a mounting groove of a rotating shaft, and to ensure the retaining of the brush.

  According to the first aspect of the present invention, mounting grooves having narrow opening portions are provided at a plurality of circumferential positions on the outer periphery of the rotating shaft, the core material is sandwiched between the two folded portions of the brush body, and the core material is In the brush that is inserted into the mounting groove of the rotating shaft together with the folding portion, the hub that is engageable with the end of the core material inserted into the mounting groove of the rotating shaft and prevents the core material from coming off from the mounting groove. It is attached to the end face.

  According to a second aspect of the present invention, in the first aspect of the present invention, the hub further includes an annular groove, and each of the ends of the plurality of core members arranged in the circumferential direction of the outer periphery of the rotating shaft is accommodated in the annular groove. The end portions of the respective core members can be engaged with the groove surface of the annular groove in the axial direction and the radial direction of the rotating shaft.

(Claim 1)
(a) Since the retaining hub for the core material sandwiched between the two folds of the brush unit is attached to the end surface of the rotating shaft, the two-folded part of the brush unit and the core material can be easily inserted into the mounting groove of the rotating shaft. At the same time, it is possible to ensure the retaining.

(Claim 2)
(b) Since each of the ends of the plurality of core members is placed in the annular groove of the retaining hub attached to the end surface of the rotating shaft, each core member can be easily removed from the mounting groove in the axial direction and the radial direction of the rotating shaft. I can prevent it.

  1 is a front view showing a car wash brush of Example 1, FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1, FIG. 3 is a detailed view of III part of FIG. 1, and FIG. 5 is a sectional view showing a rotating shaft, FIG. 6 is a hub, (A) is a sectional view, (B) is an end view, FIG. 7 is a front view showing a car wash brush of Example 2, and FIG. 7 is a sectional view taken along line VIII-VIII in FIG. 7, FIG. 9 is a detailed view of a part IX in FIG. 7, FIG. 10 shows a hub, (A) is a sectional view, and (B) is an end view.

Example 1 (FIGS. 1 to 6)
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 attaching a large number of brushes 21 to the outer periphery of a hollow rotary shaft 11 made of an aluminum alloy or the like, as shown in FIG. . The brush unit 21 is made of sponge plastic such as ethylene vinyl acetate (EVA), plastic such as polypropylene or polyethylene, cloth, or twisted fiber. The brush unit 21 of the present embodiment has a flexible band plate shape in which one or two or more are stacked, but may be a flexible wire rod shape.

  As shown in FIGS. 2 and 5, the rotating shaft 11 has a cylindrical shape, and is provided with straight mounting grooves 12 having a narrow opening 13 and extending in the axial direction at a plurality of circumferential positions on the outer periphery. Yes. The mounting groove 12 is open to both end faces, but it is sufficient that it is open to at least one end face. The groove surface of the mounting groove 12 has a U-shaped cross section perpendicular to the axial direction, and the openings 13 are protrusions 13 </ b> A that are provided at both ends of the U-shaped groove surface of the mounting groove 12 and protrude inward of the groove. It is formed by. The protrusion 13A has a cross section orthogonal to the axial direction of the groove surface of the mounting groove 12, has a rounded tip, and does not damage the brush unit 21 that swings relative to the protrusion 13A during the cleaning operation.

  As shown in FIGS. 1 and 2, the brush unit 21 is folded in two, and the core material 22 is sandwiched between the two folded portions 21 </ b> A, and the entire width of the two folded portions 21 </ b> A sandwiching the core material 22 is attached by the presence of the core material 22. In a state where the width is sufficiently wider than the width of the opening 13 of the groove 12, the core material 22 is moved from the opening 13 of the mounting groove 12 provided on the outer periphery of the rotating shaft 11 together with the half-folded portion 21 </ b> A of the brush unit 21 by the pushing tool. It is pushed in the diameter direction of the rotating shaft 11 and inserted into the mounting groove 12. In the present embodiment, an aluminum pipe is used as the core material 22, but a solid round bar, a hollow round bar, a square bar, or the like can be widely used as the core material 22.

  As shown in FIGS. 1 to 4, a retaining hub 30 for the brush unit 21 and the core material 22 is attached to both end surfaces of the rotating shaft 11 where the mounting groove 12 is opened. As shown in FIG. 6, the retaining hub 30 is formed of an annular body and has a shaft 32 that is coaxial with the hub body 31.

  As shown in FIGS. 2 to 4, the retaining hub 30 has a shaft 32 inserted into the inner diameter of the rotating shaft 11, the inner end surface of the hub body 31 is abutted with the end surface of the rotating shaft 11, and the rotating shaft 11 is adjacent to each other. The bolt 16 inserted through the top 15 into the recess 14 between the mounting grooves 12 and 12 and the shaft 32 are fastened to the rotary shaft 11.

  The retaining hub 30 has an annular groove 33 on the inner end face that abuts on the end face of the rotary shaft 11. As shown in FIG. 4, the hub 30 fixed to the rotating shaft 11 has an annular groove formed on each end of the core member 22 inserted together with the folded portion 21 </ b> A of the brush unit 21 in each mounting groove 12 of the rotating shaft 11. 33, and the end portions of the core members 22 protruding from the brush unit 21 in the lateral direction can be engaged with the groove bottom surface and the groove side surface of the annular groove 33 in the axial direction and the radial direction of the rotary shaft 11, respectively. 22 can be prevented from coming off the mounting groove 12.

  In the car wash brush 10, a bolt inserted into an end plate provided on the brush drive shaft of the car wash machine is screwed into a screw hole 34 provided on the outer end face of the hub body 31 of the retaining hub 30. Provided for use.

According to the present embodiment, the following operational effects can be obtained.
(a) Since the retaining hub 30 of the core member 22 sandwiched between the two folded portions 21A of the brush unit 21 is attached to the end surface of the rotating shaft 11, the folded portion 21A of the brush unit 21 and the core member 22 are attached to the rotating shaft 11. It can be easily inserted into the groove 12 and can be reliably secured.

  (b) Since each of the end portions of the plurality of core members 22 is placed in the annular groove 33 of the retaining hub 30 attached to the end surface of the rotating shaft 11, each core member 22 is moved in the axial direction and the radial direction of the rotating shaft 11, It can be easily prevented from coming off the mounting groove 12.

Example 2 (FIGS. 7 to 10)
The second embodiment is substantially different from the first embodiment in that, as shown in FIGS. 7 to 10, the mounting groove 12 of the rotary shaft 11 extends spirally around the central axis, and the retaining hub. In other words, the hub 30 is fixed to the rotary shaft 11 by screwing a bolt 36 inserted into a bolt insertion hole 35 provided in the hub body 31 of 30 onto the end face of the rotary shaft 11. The spiraling of the mounting groove 12 in the rotating shaft 11 is a method of simultaneously forming the spiral mounting groove 12 by twisting the rotating shaft 11 when the rotating shaft 11 is extruded, or the rotating shaft 11 in which the straight mounting groove 12 has been formed. Depending on the method of twisting.

  Therefore, even in the car wash brush 10 of the second embodiment, the same operational effects as in the first embodiment are obtained.

  In the car wash brush 10 of the second embodiment, the brush unit 21 inserted in the mounting groove 12 of the rotating shaft 11 forms a spiral around the central axis of the rotating shaft 11, so that the mounting groove 12 extends in the extending direction. The front end surface of the brush unit 21 along the surface contacts the surface to be cleaned (vehicle surface) in order from one end side to the other end side in the extending direction (the width direction of the brush unit 21). As a result, it is possible to obtain the effect of scraping the surface to be cleaned by the brush edge of the brush unit 21 and the effect of quieting the car washing noise due to the tip surface of the brush unit 21 not hitting the vehicle surface all at once. A preferred value of the spiral angle (α in FIG. 7) formed by the mounting groove 12 and the extending direction of the brush unit 21 with respect to the axial direction of the rotating shaft 11 is 10 degrees or more and 45 degrees or less. If the angle is less than 10 degrees, the above-mentioned effect is not obtained. If the angle exceeds 45 degrees, the amount of bending deformation of the core material 22 for insertion into the mounting groove 12 becomes excessive, and the flocking work of the brush unit 21 on the rotary shaft 11 becomes difficult. .

  Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. Is included in the present invention.

1 is a front view showing a car wash brush of Example 1. FIG. FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a detailed view of part III in FIG. FIG. 4 is a detailed view of a portion IV in FIG. FIG. 5 is a cross-sectional view showing the rotating shaft. 6A and 6B show the hub, where FIG. 6A is a cross-sectional view and FIG. 6B is an end view. FIG. 7 is a front view showing the car wash brush according to the second embodiment. FIG. 8 is a sectional view taken along line VIII-VIII in FIG. FIG. 9 is a detailed view of the part IX in FIG. FIG. 10 shows a hub, where (A) is a cross-sectional view and (B) is an end view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Brush 11 Rotating shaft 12 Mounting groove 13 Opening part 21 Brush unit 21A Folding part 22 Core material 30 Hub 33 Annular groove

Claims (2)

Mounting grooves with narrow openings are provided at multiple positions in the circumferential direction of the outer periphery of the rotating shaft,
In a brush in which a core material is sandwiched between two folded portions of a brush alone, and the core material is inserted into a mounting groove of a rotating shaft together with the two folded portions of the brush alone,
A brush characterized in that a hub that is engageable with an end portion of a core member inserted in a mounting groove of a rotating shaft and that prevents the core member from coming off from the mounting groove is attached to an end surface of the rotating shaft.   The hub has an annular groove, and each of the end portions of a plurality of core members arranged in the circumferential direction of the outer periphery of the rotating shaft is stored in the annular groove, and the end portions of the core members are arranged in the axial direction and the radius of the rotating shaft. The brush according to claim 1, wherein the brush can be engaged with a groove surface of the annular groove in a direction.

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