JP6268922B2 - Ring brush unit, brush roll, brush type road sweeper - Google Patents

Description

  The present invention relates to a ring brush unit used for a brush roll of a brush type road cleaning vehicle, a brush roll using the ring brush unit, and a brush type road cleaning vehicle using the brush roll.

As shown in FIG. 1, the brush-type road cleaning vehicle 40 includes side brushes 42 on the left and right sides of a vehicle body 41 and a main brush 43 on the rear side of the vehicle body 41, and dust on the road surface collected by the rotating side brush 42. Are swept up by a rotating main brush 43 and transferred to a hopper 46 by a conveyor device 44 and a counter-rotating paddle 45.
As the main brush 43, a brush roll formed by mounting a plurality of ring brushes on a brush shaft is used. As a brush roll, for example, as disclosed in Patent Document 1, a plurality of wave brushes (ring brushes) in which a brush material is radially implanted on the outer periphery of a ring member are externally mounted on the outer periphery of a main brush core. It has been. In Patent Document 2, a polypropylene fiber fusion part is inserted into a polypropylene channel having a U-shaped cross section, and is sandwiched between sandwiching plates, and a brush material which is heated and fixed by fusion is formed into an annular shape. An invention for obtaining a brush roll is disclosed. Further, Patent Document 3 discloses an invention of a channel brush in which a core wire is arranged inside a channel having a substantially U-shaped cross section, and a brush piece is sandwiched between the core wire and the channel so as to be implanted in the channel. Has been.

JP 2003-313838 A JP 2007-54614 A JP 2011-45498 A

In recent years, ring brushes are also required to be easily discarded after use and can be recycled. However, the wave brush of Patent Document 1 is difficult to separate the ring member and the brush material and is difficult to recycle. It has become a thing. The same applies to the channel brush of Patent Document 3 in which the material of the channel and the brush piece are different. On the other hand, the brush roll of Patent Document 2 is easy to recycle because the channel and the brush material are the same polypropylene. However, the brush roll is liable to break and has a problem in durability.
Therefore, the applicant of the present application, in Japanese Patent Application No. 2012-137532, which is a prior application, includes a ring member attached to the brush shaft, and a brush piece assembly composed of linear brush pieces extending radially from the ring member, A ring brush used for the brush roll of a brush type road surface cleaning car, the brush piece assembly is made of synthetic resin, and the same synthetic resin brush piece as the brush base is radially bonded to the outer periphery of the ring-shaped brush base. On the other hand, the ring member is formed from a pair of pressing members that sandwich the brush piece assembly from the front and back in the axial direction.
However, when this ring brush is attached to the brush shaft, the work of fixing the ring brushes one by one to the metal fittings radially projecting from the brush shaft has been carried out. It was something to hang.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a ring brush unit, a brush roll, and a brush type road surface cleaning vehicle that can reduce the number of steps for assembling the ring brush and shorten the production time of the brush roll.

In order to achieve the above object, the invention described in claim 1 is a ring brush unit, comprising a brush piece assembly comprising a plurality of linear brush pieces extending radially, and a brush piece assembly in the axial direction. A plurality of shaft members, which are provided with a pair of pressing members sandwiched from the front and rear of the ring and used in a brush roll of a brush-type road surface cleaning vehicle in the axial direction, and penetrate the pressing members of each ring brush simultaneously. Ring brush units connected to each other , wherein the pair of pressing members of each ring brush is a ring body having the same shape, and one of the pressing members has a cylindrical shape that abuts the adjacent ring brush side. The spacer is provided in a state of penetrating perpendicularly, and the other pressing member is provided with a through hole that matches the spacer in the axial direction with the brush piece assembly sandwiched therebetween. The shaft member is characterized in that it penetrates to the spacer and the through hole arranged in axial direction while overlapping each ring brush in the axial direction.
In order to achieve the above object, the invention according to claim 2 is a ring brush unit comprising a plurality of linear brush pieces extending radially and a brush piece assembly in the axial direction. A plurality of shaft members, which are provided with a pair of pressing members sandwiched from the front and rear of the ring and used in a brush roll of a brush-type road surface cleaning vehicle in the axial direction, and penetrate the pressing members of each ring brush simultaneously. A pair of pressing members of each ring brush is a ring body having the same shape, and the pair of pressing members has a cylindrical spacer that abuts the adjacent ring brush side. Each of them is provided in a state of penetrating perpendicularly, and a through hole concentrically with the spacer is provided, and the pair of pressing members sandwich the brush piece assembly. In this state, the spacers are overlapped in the axial direction so that the respective spacers are aligned with the counterpart through-holes, and the shaft member is also connected to the spacers and the through-holes aligned in the axial direction with the ring brushes overlapped in the axial direction. It is characterized by being penetrated .
According to a third aspect of the present invention, in the configuration of the first or second aspect , the plurality of shaft members are erected on the ring-shaped first set plate, and one end side of the ring brush stacked in the axial direction. The tip part penetrated by the holding member from the ring is connected to a ring-shaped second set plate provided on the other end side of the ring brush .
According to a fourth aspect of the present invention, in the configuration of the third aspect, a guide member that guides the penetration of the pressing member at the tip of the shaft member and is detached when connected to the second set plate is detachably provided. It is a feature.
According to a fifth aspect of the present invention, in the configuration of the third or fourth aspect, the second shaft member is inserted from the first set plate side, penetrated through the ring brush pressing member, and fixed on the second set plate side. It is characterized by this.
The invention according to claim 6 is characterized in that, in the configuration of claim 1 or 2 , the pressing members abutting between the adjacent ring brushes are coupled to each other via a spacer.
In order to achieve the above object, the invention described in claim 7 is a brush roll, wherein a plurality of ring brush units according to any one of claims 1 to 6 are mounted on the brush shaft in an axial direction. It is characterized by this.
In order to achieve the above object, the invention described in claim 8 is a brush type road surface cleaning vehicle, characterized in that the brush roll according to claim 7 is used as a main brush at the rear part of the vehicle body. Is.

According to the present invention, the number of steps for assembling the ring brush can be reduced, and the production time of the brush roll can also be shortened.
In particular , the spacing between the ring brushes is maintained by the spacer, and an axial force when assembled by the shaft member can be received, so that the ring brushes can be preferably integrated by the shaft member.
In particular, according to the second aspect of the present invention, since the spacer is provided on each of the pair of pressing members, the ring brush unit can be firmly assembled.
According to invention of Claim 3 and 4 , the assembly | attachment of a ring brush unit can be performed still more easily by employ | adopting the 1st set plate which erected the shaft member.
According to the fifth aspect of the present invention, the ring brush unit can be more firmly assembled by adopting the second shaft member.
According to invention of Claim 6 , the assembly | attachment of a ring brush unit can be performed still more easily by couple | bonding pressing members.

It is explanatory drawing of a brush-type road surface cleaning vehicle. It is a longitudinal cross-sectional view of a brush roll. It is an exploded view of a ring brush unit. It is explanatory drawing which shows the assembly | attachment state of a ring brush unit. It is an AA arrow line view of FIG. It is a front view of a ring brush unit. It is an expanded view of the cross section in the circle B of FIG. It is explanatory drawing of a filament assembly. It is CC sectional view taken on the line A of FIG. It is a front view of one pressing plate. It is an expanded view of the cross section in the DD circular arc of FIG. It is a front view of the other pressing plate. It is an expanded view of the cross section in the EE circular arc of FIG. It is an exploded view of the ring brush unit of the example of a change. It is a front view of one holding plate of the example of a change. It is an expanded view of the cross section in the FF circular arc of FIG. It is a front view of the other pressing plate of the example of a change. It is an expanded view of the cross section in the GG circular arc of FIG. It is a front view of the ring brush unit of the example of a change. FIG. 20 is a development view of a cross section in a circle H in FIG. 19. It is an exploded view of the ring brush unit of the example of a change. It is a front view of an integrated pressing plate. It is an expanded view of the cross section in the II circular arc of FIG. It is a disassembled perspective view of the ring brush unit of the example of a change.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 2 is a longitudinal sectional view of the brush roll 1 used for the main brush 43 of the brush-type road cleaning vehicle 40 described in FIG. 1. The brush roll 1 is superimposed on the brush shaft 2 and the brush shaft 2 in the axial direction. It consists of three ring brush units 3, 3.
First, the brush shaft 2 has a plurality of (eight in this case) ribs 7 on the outer periphery of the shaft core 4 having a large diameter head 5 at one end and a threaded portion 6 at the other end, as shown in FIGS. .. Are provided radially, and a retaining flange 8 having a diameter larger than the protruding diameter of the rib 7 is fixed to the end of the rib 7 on the head 5 side, while the rib 7 on the screw portion 6 side is fixed. A small flange 9 having a smaller diameter than the protruding diameter of the rib 7 is fixed to the end portion of the rib.

  Next, the ring brush unit 3 is formed by integrating a plurality of ring brushes 10, 10,. As shown in FIG. 3, the ring brush 10 includes a filament assembly 11 as a brush piece assembly in which brush filaments as linear brush pieces are radially provided, and an axial front and rear of the filament assembly 11. A pair of ring-shaped rubber plates 12 and 12 and a pair of ring-shaped pressing plates 13 and 14 as pressing members that clamp the filament assembly 11 from the front and rear in the axial direction from the outside of the rubber plates 12 and 12. Become.

First, as shown in FIGS. 8 and 9, the filament assembly 11 is formed by using a PET (polyethylene terephthalate) ring-shaped sheet material 15 as a brush base, and the base ends of the same brush filaments 16, 16. By being sandwiched and bonded, it is formed in a disc shape having a through hole 17 in the center.
The rubber plate 12 is made of natural rubber, and the inner diameter is substantially the same as the inner diameter of the sheet material 15, but the outer diameter is larger than the outer diameter of the sheet material 15.

  As shown in FIGS. 10 and 11, the pressing plate 13 is a metal ring body having a waveform in which concave portions 18 and convex portions 19 in the radial direction are alternately formed at intervals of 45 ° with the inclined portion 20 interposed therebetween. .. Of the four concave portions 18, 18... Located at intervals of 90 ° are formed longer than the convex portion 19 and have an inner diameter smaller than the protruding diameter of the rib 7 of the brush shaft 2. 21. The protrusion 21 is formed with a notch 22 into which the rib 7 can be fitted. Of the four recesses 18, a pair of recesses 18, 18 that are positioned symmetrically with respect to each other are attached with cylindrical spacers 23 penetrating in an orthogonal manner, and the recesses 18 other than the recesses 18, 18 and Each projection 19 is formed with a through hole 24 that is positioned concentrically with the spacer 23.

  On the other hand, as shown in FIGS. 12 and 13, the pressing plate 14 has the same shape as the pressing plate 13, but here the spacer 23 is not provided, and all the concave portions 18 and the convex portions 19 are concentric. The upper through holes 24 are respectively formed. The through hole 24 is smaller than the inner diameter of the spacer 23.

  When the ring brush unit 3 is manufactured using the ring brush 10 configured as described above, as shown in FIG. 3, the rubber plates 12 and 12 are applied from the front and the back with the filament assembly 11 as the center, and a pair of holding plates 13. , 14 so that the pressing plate 13 provided with the spacer 23 is positioned on the front side and the pressing plate 14 without the spacer 23 is positioned on the back side, respectively, the phase of the concave portion 18 and the convex portion 19 and the phase of the protruding portion 21. Are combined so as to sandwich the filament assembly 11 and the rubber plates 12 and 12.

  Then, the spacer 23 of the pressing plate 13 on the front side penetrates the filament assembly 11 and the rubber plate 12 and comes into contact with the concave portion 18 of the pressing plate 14 on the back side, and the ring brush 10 in which the spacer 23 and the through hole 24 are matched. Is obtained. At this time, the filament assembly 11 is deformed into a wave shape in accordance with the uneven shape of the holding plates 13 and 14.

  Ring-shaped set plates 25 and 25 are used in a state in which a plurality of the ring brushes 10 are produced and overlapped with each other so that the spacers 23 are aligned in a straight line in the axial direction. Here, in one set plate 25, a pair of through holes 26, 26 are formed in a point-symmetrical position on a concentric circle with the through holes 24 of the holding plates 13, 14, and a phase of 90 ° with the through holes 26 is formed. One end of a pair of stud bolts 27, 27 as shaft members is fixed at a point-symmetrical position on the shifted concentric circle. On the other set plate, only through holes 24 are formed at four positions.

  Therefore, one set plate 25 is applied to the outer side of the outermost ring brush 10 so that the stud bolt 27 penetrates the spacer 23, and the other set plate 25 is set to the outer side of the outermost ring brush 10 on the opposite side. When the nut 28 is tightened to the tip of the stud bolts 27, 27 protruding from the other set plate 25, the ring brush unit 3 in which the adjacent ring brushes 10, 10... Are connected to each other via the stud bolts 27. Is obtained. In this ring brush unit 3, as shown in FIG. 6, the tips of the protruding portions 21 of the presser plates 13 and 14 protrude closer to the center than the set plates 25 and 25, and as shown in FIG. The ring brushes 10 are maintained at a constant distance by the spacer 23.

  The three ring brush units 3 produced in this way are sequentially put on the brush shaft 2. At this time, the brush shaft 2 is passed through the ring brush unit 3 so as to be in a phase in which the rib 7 of the brush shaft 2 is fitted into the notch 22 of the protruding portion 21. In addition, since stud bolts 27 interfere with each other when the phase is the same as that of the adjacent ring brush units 3 and 3, the adjacent ring brush units 3 and 3 are shifted from each other by 90 °. In this way, the tip of the stud bolt 27 passes through the through hole 26 of the set plate 25 of the adjacent ring brush unit 3 and does not interfere.

  Then, with the three ring brush units 3, 3... Being sequentially sheathed on the brush shaft 2, as shown in FIG. 4, a retaining nut 29 having a retaining flange 30 secured to the threaded portion 6 of the shaft core 2. Are screwed into the small flange 9 of the shaft core 2 and a plurality of ring brushes 10.10... Are continuously mounted on the brush shaft 2 as shown in FIG. A brush roll 1 is obtained. In this state, each ring brush unit 3 is prevented from coming off in the axial direction by the retaining flanges 8 and 30, and the ribs 7 are fitted in the notches 22 of the projecting portions 21 of the holding plates 13 and 14, so that It is prevented from rotating.

  Thus, according to the said form, the filament assembly 11 which consists of the several linear brush filament 16 extended radially, and a pair of presser plates 13 and 14 which clamp the filament assembly 11 from the front and back of the axial direction are provided. By using the ring brush unit 3 in which a plurality of ring brushes 10 are stacked in the axial direction and connected by a plurality of stud bolts 27 that simultaneously penetrate the holding plates 13 and 14 of each ring brush 10, a ring brush is obtained. 10 assembly steps can be reduced, and the production time of the brush roll 1 can be shortened.

  In particular, here, the spacers 23 that contact the adjacent ring brush 10 side are provided on the holding plate 13 of each ring brush 10, and the stud bolt 27 is also passed through the spacer 23. The distance can be maintained and an axial force can be received when the stud bolts 27 are assembled, and the ring brushes 10 can be preferably integrated with the stud bolts 27.

  In addition, in the said form, although the three ring brush units are produced, the number can be increased / decreased suitably. Further, the number of ring brushes included in the ring brush unit is not limited to the above form. The number of spacers and stud bolts can be changed as appropriate.

  FIG. 14 shows a modified example of the ring brush unit. In the ring brush unit 3A shown here, four stud bolts 27, 27... As shaft members and four shaft members as second shaft members are shown. Fixing bolts 32, 32,... Are used. The stud bolts 27 are erected on one set plate (first set plate) 25 at equal intervals in the circumferential direction via a large-diameter stud bolt base 27a, and the tip has a tapered shape with a tapered tip. The guide members 33 are detachably provided. A through hole for the fixing bolt 32 is formed between the stud bolts 27, 27 in the set plate 25. The fixing bolt 32 includes a large-diameter flange portion 32a at the proximal end and a small-diameter screw portion 32b at the distal end.

On the other hand, as shown in FIGS. 15 and 16, the holding plate 13 is formed with a protruding portion 21 having a notch 22 on the center side of the four convex portions 19 and a cylindrical spacer 23 penetrating in an orthogonal manner. It is attached in the state to do. The four recesses 18 are respectively formed with through holes 24 that are positioned concentrically with the spacer 23. The lower end of the spacer 23 protrudes until it is flush with the lower surface of the recess 18.
In addition, as shown in FIGS. 17 and 18, the pressing plate 14 is formed with four protrusions 19 and notches 22 as in the pressing plate 13, but here the spacer 23 has four recesses. 18, and a through hole 24 is formed in the convex portion 19. The upper end of the spacer 23 protrudes until it is flush with the upper surface of the convex portion 19.

  Therefore, in this ring brush unit 3A, the rubber plates 12 and 12 are applied from the front and the back with the filament assembly 11 as the center, and the pair of pressing plates 13 and 14 are shaped so that the side with the small protrusion amount of the spacer 23 faces each other. The filament assembly 11 and the rubber plates 12 and 12 are combined with the phase of the concave portion 18 and the convex portion 19 and the phase of the protruding portion 21 being matched. Then, the spacer 23 of the convex portion 19 of the pressing plate 13 penetrates the filament assembly 11 and the rubber plate 12 and contacts the convex portion 19 of the pressing plate 14 to match the through hole 24, while the concave portion 18 of the pressing plate 14. The spacer 23 penetrates the filament assembly 11 and the rubber plate 12 and comes into contact with the recess 18 of the pressing plate 13 to obtain the ring brush 10 that matches the through hole 24. At this time, the filament assembly 11 is deformed into a wave shape in accordance with the uneven shape of the holding plates 13 and 14.

  A plurality of the ring brushes 10 are manufactured, and the ring brushes 10, 10,... Are alternately reversed so that the pressing plates 13 and the pressing plates 14 of the adjacent ring brushes 10, 10 abut each other alternately. In this manner, the spacers 23 of the pressing plates 13, 13,... And the spacers 23 of the pressing plates 14, 14,. However, in the ring brush 10 positioned on the insertion side of the stud bolt 27 (the right end in FIG. 14), there is no spacer 23, and a pressing plate 13a in which a through hole 24 is formed in each of the concave portion 18 and the convex portion 19 is used. . Further, in the ring brush 10 at the left end of FIG. 14, a pressing plate 13 is used on both the front and back sides.

In this state, the set plate 25 is applied to the outer side of the ring brush 10 at the right end by passing the four stud bolts 27 through the four spacers 23 of the holding plate 13. However, a large-diameter spacer 23a covering the stud bolt base 27a is interposed between the pressing plate 13a of the ring brush 10 at the right end and the set plate 25. Since the guide member 33 is provided at the tip of the stud bolt 27, each spacer 23 can be smoothly penetrated.
In total, four fixing bolts 32 are passed through the four spacers 23 of the pressing plate 14 through the through holes of the set plate 25.

Then, the guide member 33 is removed from the stud bolt 27 protruding from the spacer 23 of the ring brush 10 at the left end, and the tip end of the stud bolt 27 is passed through the through hole 26 of the other set plate (second set plate) 25. When the nut 28 is tightened and the stepped nut 34 inserted into the spacer 23 through the through hole 26 of the set plate 25 is tightened to the screw portion 32b of the fixing bolt 32, as shown in FIGS. A ring brush unit 3A is obtained in which 10, 10,... Are connected to each other via a stud bolt 27 and a fixing bolt 32.
If the three ring brush units 3A produced in this way are sequentially sheathed and fixed to the brush shaft 2 in the same manner as in the previous embodiment, the brush roll 1 is obtained.
Thus, according to the ring brush unit 3A, the spacer 23 is provided on each of the pair of pressing plates 13 and 14, so that the ring brush unit 3A can be firmly assembled. In particular, the use of the set plate 25 with the stud bolts 27 standing up allows the ring brush unit 3A to be assembled more easily.
Since the four fixing bolts 32 are used in addition to the four stud bolts 27, the assembly of the ring brush 10 can be performed more firmly.

On the other hand, as shown in FIG. 21, the pressing plate is formed by combining pressing plates 13, 13 that are in contact with adjacent ring brushes 10, 10 and pressing plates 14, 14. Plates 13A, 14A) may be used. 22 and 23 show the pressing plate 13A. The both ends of one spacer 23 are fixed between the convex portions 19 and 19 in the same phase of the pressing plates 13 and 13, respectively. Plates 13 and 13 are joined.
In this way, if the pressing plates 13 and 13 and the pressing plates 14 and 14 that are in contact with each other between the adjacent ring brushes 10 and 10 are connected via the spacer 23, the assembly of the ring brush unit 3A can be performed more easily.

In the above modification, the fixing bolt 32 is penetrated from the same side as the stud bolt 27. However, the fixing bolt 32 is penetrated from the opposite side to the stud bolt 27 as in the ring brush unit 3A shown in FIG. It may be.
Moreover, in the said form and modification, although the set plate is provided in the both ends of the ring brush unit, this may be abbreviate | omitted and you may make it assemble | attach a stud bolt between the pressing plates of both ends.

In addition, in the ring brush of the above-mentioned form or modification, a rubber plate is interposed between the brush piece assembly and the pressing plate. However, depending on the shape and material of the pressing plate, the rubber plate can be omitted. is there.
In addition, as long as the material of the brush piece assembly is the same material, the synthetic material other than PET may be adopted.

  1 .... Brush roll, 2 .... Brush shaft, 3,3A ... Ring brush unit, 4 .... Shaft core, 7 .... Rib, 10 .... Ring brush, 11 .... Filament assembly, 12 .... Rubber plate, 13, 14 ··· press plate, 16 · · · brush filament, 18 · · concave portion, 19 · · convex portion, 21 · · projection, 21 · · notch, 23 · · spacer, 25 · · set plate, 27 · · · -Stud bolts, 32-Fixing bolts, 33-Guide members, 40-Brush-type road surface cleaning cars, 41-Car bodies, 42-Side brushes, 43-Main brushes.

Claims (8)

A brush piece assembly composed of a plurality of linear brush pieces extending radially, and a pair of pressing members that clamp the brush piece assembly from the front and rear in the axial direction, and used for a brush roll of a brush type road cleaning vehicle A ring brush unit comprising a plurality of ring brushes stacked in the axial direction and connected to each other by a plurality of shaft members penetrating the pressing member of each of the ring brushes ,
The pair of pressing members of the ring brushes are ring bodies having the same shape,
Either one of the pressing members is provided with a cylindrical spacer that is in contact with the adjacent ring brush side so as to pass through orthogonally, and the other pressing member holds the brush piece assembly. In the state provided with a through hole that coincides with the spacer in the axial direction,
The ring brush unit, wherein the shaft member also penetrates through the spacer and the through hole arranged in the axial direction in a state where the ring brushes are overlapped in the axial direction. A brush piece assembly composed of a plurality of linear brush pieces extending radially, and a pair of pressing members that clamp the brush piece assembly from the front and rear in the axial direction, and used for a brush roll of a brush type road cleaning vehicle A ring brush unit comprising a plurality of ring brushes stacked in the axial direction and connected to each other by a plurality of shaft members penetrating the pressing member of each of the ring brushes,
The pair of pressing members of the ring brushes are ring bodies having the same shape,
Each of the pair of pressing members is provided with a cylindrical spacer that abuts on the adjacent ring brush side in a state of penetrating perpendicularly, and a through hole that is concentric with the spacer is provided, respectively, The pressing member is overlapped in the axial direction so that the spacers coincide with the other through hole in the state where the brush piece assembly is sandwiched,
The ring brush unit, wherein the shaft member also penetrates through the spacer and the through hole arranged in the axial direction in a state where the ring brushes are overlapped in the axial direction. The plurality of shaft members are erected on a ring-shaped first set plate, and a distal end portion penetrating from the one end side of the ring brush, which is stacked in the axial direction, to the pressing member is formed on the ring brush . ring brush unit according to claim 1 or 2, characterized in that it is connected to the ring-shaped second set plate provided on the other end. 4. The ring brush unit according to claim 3 , wherein a guide member that guides the penetration of the pressing member at the tip of the shaft member and is detached when connected to the second set plate is detachably provided. The ring according to claim 3 or 4 , wherein a second shaft member is inserted from the first set plate side, penetrates through the pressing member of the ring brush, and is fixed on the second set plate side. Brush unit. Ring brush unit according to claim 1 or 2, wherein the pressing member to each other contact between the ring brush, characterized in that attached through the spacer adjacent. A brush roll, wherein a plurality of the ring brush units according to any one of claims 1 to 6 are mounted on the brush shaft in an axial direction. A brush-type road surface cleaning vehicle using the brush roll according to claim 7 as a main brush at a rear portion of the vehicle body.

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