CA2297677A1 - Rotary brush with decreased trash throw outside brush path - Google Patents
Rotary brush with decreased trash throw outside brush path Download PDFInfo
- Publication number
- CA2297677A1 CA2297677A1 CA 2297677 CA2297677A CA2297677A1 CA 2297677 A1 CA2297677 A1 CA 2297677A1 CA 2297677 CA2297677 CA 2297677 CA 2297677 A CA2297677 A CA 2297677A CA 2297677 A1 CA2297677 A1 CA 2297677A1
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- CA
- Canada
- Prior art keywords
- bristle
- brush
- mounting
- bristles
- deflected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003247 decreasing effect Effects 0.000 title description 4
- 239000010813 municipal solid waste Substances 0.000 title description 2
- 230000000712 assembly Effects 0.000 claims abstract description 20
- 238000000429 assembly Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 2
- 241001417527 Pempheridae Species 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 3
- 238000010408 sweeping Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/04—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading
- E01H1/045—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading the loading means being a rotating brush with horizontal axis
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Brushes (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
A rotary brush is disclosed for use in a mechanical street sweeper or the like. The shape and orientation of the bristle assemblies in relation to the brush core has been modified in order to reduce the amount of dust or debris which will be thrown the outside of the path of the brush by the brush as it operates. Optimally, the need for drag shoes along the edges of the rotary brush on the street sweeper is avoided. In addition to the rotary brush itself, a bristle assembly is also disclosed.
Description
F&~f 512-93-9d, ROTARY BRUSH WITH DECRIrASED TRASH THROW 4UTSIDFs SWATB
s This invention is in the field of street cleaning equipment, and more pa,x'ticularly deals with improvements to a rotary brusk~ which will result in a decreased amount of debris being -thrown outside of the swath of the rotary brush.
to sxcx~y The main element of a mechanical street sweeping mechanism is a large rotary pickup brush which is mounted at the rear of 1s the chassis of the street sweeper. This pickup brush is generally a variation on a basic design ~ a cylindrical brush core is rotatably mounted on axis parallel to the rear of the ' street sweeping unit such that the core can be rotatably mounted on an axle or the like and rotated in a circular 2o direction towards the remainder of the street sweeping unit, ix7, the direction of travel of the street sweeping unit.
Bristle assemblies are attached about the outer surface of the bx'ush Core such that as the brush Gore is rotated towards the .. , ... . , , ,. . , v ,. ,.. ... ~ ~... . . ~ , ~ ,. . ~ , .. " ,. .....,..
,. ,. ,.... .. .. . .. ,.
~&K 512-03-04 remainder of the street sweeping unit, debris can be swept from the surfaCE passing below the pickup brush into an elevator for deposit in a reservoir and removal.
s ~'he bristle assemblies themselves generally consist of a straight mounting bar outwards from which extend a number of pliable bristles. In order that debris swept forward by the bristle assembly be swept towards the center of the street sweeping unit and not off to one side, the bristle assemblies ao are mounted straight across the brush core such that as each bristle assembly is rotated into brushing position along the relative bottom of the brush core. in contact with the surface I
being cleaned, the mounting bar of the bristle assembly and the row of bristles extending therefrom are parallel to the I ~s caliection area of the elevator. To view such a conventional pickup brush from the side, the bristles extend outwards approximately x'adially from tk~.e center of the brush core _ The radial orientation o~ the bristles and bristle assemblies in relation to the brush core provides for the most effecti-cre and ZD most aggressive brushing movement by the bristles as they pass over the surface being cleaned.
The pliable bristles towards each end of each bristle asse~ly will in many cases throw dust or debris up and outside of the F&K 512-03-04 swath of the pickup brush as they sweep across the surface arid snap back into their resting position as the brush continues to rotate. Small deposits or taws of debris end up being deposited or left on the surface being cleaned along the edges of the pickup brush swath.
The first attempts t4 avoid this problem involved the addition of xetaining walls extending back from the elevator to a position past the side of tha pickup brush. In the industry to these are commonly referred to as drag shoes. The drag shoes are allowed to drag along the street surface and stop any debris from flying' outside of the swath of the pickup brush.
pne of the major problems with street sweepers ,xsing drag shoes, as is evident from the name of that component, is that is the constant drag of these debris guides on the road surface results in thei.x need to be ohaxxged quite regularly due to wear and tear. Ins addition to the downtime of the street sweeping unit CZuring the change of such components, there is considerable additional cost both in terms a~ labor and parts, zo to maintain these parts in working condition. Tt is particularly problematic because as the drag shoes wear, thei.x effectiveness is decreased. Drag shoes are als4 not completely affective in a situaGzolt'1. whexe the surface being cleaned is 'v'ery dirty.
F&K 512-03-04 - Pale 5 -It would be advantageous to be able to reduce the amount of debris thrown outside of the swath of the pickup brush on a street sweeper without having to change the shape of the m4untir~g bar of the bristle assemblies from being straight, s~.xlce the straight bristle assemblies are far easiex' to mount, build axed maintain. In addition, be~,xxg able to maintain the orientariori of the bx'istles of the bristle assemblies when mounted as extend,~.ng outwards approximately radially from the to center of the brush core pro~rides for the most aggressive oleaning motion by the pickup brush.
S'U1~~ARY OF I I
It is the object of the present invention to pr'ovxde a rotary brush for use in such applioations as the pickup brush on a mechanical street sweeper which brush would decrease the 2mouT7,t of debris or dust thrown outside of the path or swath of the brusk~_ zt is the further object of the present invention to provide such a rotary brush wherein the portion of tho mounting bar of each bristJ.e assembly which is used to attach the bristle assembly to the brush core remaix~,s straight and the majority of the bristles extend radialJ.y Qutward from F&K 512-03-04 the centre of the brush. care.
The invention discloses a rotary brush comprising a cylindrical brush core with a plurality of bristle assemblies s displaced thereon, each bristle assembly having a plurality of bristles extending outward therefrom, a plurality of bristles near each end of each bristle assembly being mounted such that their material throw will be towards the oentxe of said bristle assembly and cylindrical bx'ush_ The remainder of the to bristles of each bristle assembly could extend approximately radially outwards from the brush core and the material throw of these bristles might be directly ahead of the brush where said brush is rotated about its axis.
15 The bristles xzear the end of each bristle assembly of this rotaxy brush would be deflsoted to~rards the centre of the brush.
More particularly, there is disclosed a rotary brush 20 compz'ising a cyllridx'xcal brush core, and a plurality of bristle assemblies attached about the outer surface of said brush coxe, each said bristle assembly having two ends and each sand bristle assembly comprising a mountixzg bar, said mounting bar having a brush attachment edge and a bristle F&K 512-03-D4 mounting edge; and bristles attached along and extending outward from the bristle mounting edge of said mounting bar, wherein the bristles at or near the ends of said mounting bar are deflected towards the centre of the mounting bar while the remainder of the bristles extend approximately radially outward from the cexitre of said brush core.
It is particularly contemplated that the bristles near each end of each bristle assembly could be deflected towards the io centre of the bristle assembly by az~,c~ling each of the ends of the bristle mounting edge inwards towards the centre of the mounting bar at an angle of deflection. As such, the bristles attached along the bristle mounting edge in this angled section would be al~:~led inwards, arid the remainder of the i5 bristles could remain substantially straight, extending radially outwards from the centre of the cylindrical brush core.
This bristle assembly might have a mounting bar witk~ a bri$tle zo mounting edge that comprised a central section and a deflected mounting section at each end thereof, wherein each said deflected mounting section was bent towards the central section at an angJ.e of deflection-"" , ., . « . , , ,. , ",. , ~ .~ ",. , , ", " d ,. ." ~ " . ". ~ , ". , , ~
."", .,.,., ,... ~ .. .. , t, .,., F&K 512-03-04 - page 8 -Since the majority of the bristles of the bristle assembly of the present invention will be mounted such that they extend outwards approximately radially from the centre of the brush care, the sweeping motion of the bristle assembler and rotary brush of tae present invention will be most aggressive. As well, since the angled portions of each end of the bristle assembly do not exteYld all the way to the centre of the bristle assembly, i.e. a V shape is z~ot formed, debris swept forward by the brush w111 not be thrown all the way to the to centre of tk~e swath and the elevator can then be counted on to work at its maximum efficiency. The angle of deflection at each end of the bristle assembly could be adjusted in manufacture far various situations and it will be understood that various angles are contemplated within the scope of the 1s present ~nvention_ The brush attachment edge of the mounta.z~g bar of the bristle assemblies would optimally be straight. Similarly, the central section of the bristle mounting edge would also 20 opt7.mally be stxaight, although it will be understood that other prof~.les cculd be given to the central section of the bristle mounting edge without departing from the sCOpe and intent of the claimed invention.
L I VV~ J-LLfl4l~l UIIIIUII W C\UI I IV 11'dU 411 V- IIIUIII IIVn I' I JVV JJJ
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F&x ssz-o3-o4 Since the brush attach-ment edge of each bristle assembhy would remain straight, the assembly of the rotary brush of the present invention by attaching the bristle assemblies to tk~e brush core would be quick and easy since they axe all attached s in straight lines. 'fhe laboux requirements would be less and the mounting hardware might also be decreased. Repair of the brush by replacement and removal of individual bristle assemblies would also be easier.
~o Given the straight nature of Ghe bxush attachment edge of the bristle assembly of the present invention, it will be understood that the bristle assembly of thg present irxvention eQUld also be used as a retrofit item on older cylindrical brush cares. This would allow fo'r' the mQC~ification of 1~ preexisting street sweepixzg equipment or other rotary brush equipment for ir~ereased performance and reduced throw butside of the swath of the brush.
The present invention, ix~ addition to being a complete xotary zp brush assembly', also includes the bristle assetr~bly designed for use therewith.
DESCRIP~IIQN OF THE DRAWINGS:
t- i-uu; a:tcrm;rurninr~ ry rtm i iv Hda mru: roam nv. ;ti sue a5v a~na a vai ,sa F&~C 57,x-03-04 While the invention is claimed in the concluding portions hereof, preferred embodiments are provided in the accotttpanying detailed description which may be best understood in conjuriC~.iQn with the accompanying diagrams where like parts in each of the several diagrams are labeled with like x~umlaers, and where:
Figure 1 is a side view of one embodiment of a brist7.e lp assembly of the present invention;
Figur$ 2 is a perspective view of the mounting bar of the embodiment of Figure 1;
F~,gure 3 is a top view of the embodiment of Figure 1;
Figure 4 shows one embod~.ment of a rotary brush, demonstrating the mQUntinc~ of bristle assemblies such as those of Figuxes 1 to 3 on a cylindrical brush pore;
2p Figure 5 shows an end cross section of one embodiment of a rotary bxush empla~ring the bristle assemblies of Figures ~. to 3 , which demonstrates the angled ends Qf the bristle assemblies; and L- I-UU~ J.LL1'IVI~rUilllt7tl 61 I~2ll I IU r'i1j77 UII"U. IIIt7111 fIU~ DTI
JUO JDJ DJJD iF I!! JJ
F&K 512-03-04 Figure 6 is a crass section of the centre of the brush of Figure 5, demonstrating the radial dxspo$ition of the majority of the bristles.
DETAINED DESC3i N OF k~D ~DDI~E~TTS
Ar, outlined above, the present inveritiori is a modified cylindrical brush for use Qn a street sweeper of the like, which will reduce or' eliminate the throw of material outside the swath of the brush and avoid same of the pxablems associated with arcuate bristle assemblies currently known ire the art . Figures 1 to ~ demonstrate orxe embodiment of the bristle assembly of the pxesent invention. There is shown the is bristle assembly (~), whioh consists of a mounting bar (5) with bristles (4) mounted thereon. The mounting bar (s) has a brush attachment edge (6) and a bxistle mounting edge (7).
As can be seen from these figures, the mountixzg bar (5) is essentially straight, particularly along its brush attachment zo edge (6). 8y making the brush attaehmEnt edge (5) stxaight, the bristle assembly (3) of the present invention can most easily and quickly be mounted onto a brush core and removed individually for change or repair. The mounting bar t5) and bristle assembly (3) each have two ends (10). As can be seen L I V V ~ J ~ L L f I VI ~ I U I I I I U I I W f \ U I I I V f'I Fj U 4 I r V
~ I I I U I I I I I V n ~ ' I V V V V V J V ;J V V T I V I V V
F&K 512-03-fl4 - Page Z2 -from Figures 3 to 5, bristles (4) are attached along axed extend outward from the bristle mounting edge (~) of the mounting bar (5) . The key of tk~e pxesent invention is that the bristles (4) at or near the ends (10) of the mounting bar (5) are de~J~eeted towards the centre of the mounting bar (5).
Iri this fashion, the material throw from the bx'istles (4) closest to the ends (10) of the maun,ting bar will be towards the centre of the mounting bar (5) and the bristle assembly t3) and the brush to whxck~ it ie attached. The remainder of 1o the bristles (~), towards the centre of the mounting bar (5), would remain oriented such that their material throw would be straight ahead c~f the bristle assembly (3) as the bristle assembly (3) and its attached bristles (~) were moved across the ground. Thus, the material throw of the entire bristle is assembly (3) into the elevator or other collection de'u'iCe would remain relatively e~ren, rather than concentrating the material throw all at the centre of the mounting bar (5) as would be the case in a conventional arcuate bristle assembly .
situation.
The portions of the bristle mounting edge ('7) closest to eaoh end (10) of the mounting bar, which portions Iwo~txld be angled j.zlwards towards the centre of the moixnting bar (51 at an angle of deflection, would be the deflected maunting sections (~) of L- 1-UU; 3: LLYIVI;t-Uf flltlfl ik ttG I I I U NAG 41 NU: fIIG I II IIU~ ;T'I
3Ub Jb~ O~Jb iF ly/ 3J
F&K 512-03-04 - Page l~ -the bristle mounting edge (7). The deflected mounting secti4ns (8) would not reach all the way to the centre of the mQUnting bar (5), rather there would be a straight centre section (9) of the mounting bar (5) between the de~~,e>Yted mountinrj sections (8) . The defJ.ected mpunting sections (8) at each end (10) of the mounting bar would accomplish the goal of deflecting the bristles (4) closest to each end (10) t6wa~'ds -the centre of the mounting bar (5), while leaving the remainder of the bristles (~) in a standard straight line ~o across the bristle mounting edge (?).
It will be understood that the angle of dsfl~Ctiori of the deflected mounting sections (8), in relation to the remainder of the bristle rnou~xting edge (?) and particularly tk~e centre section (9) thereof, Could be varied in manufacture for various circumstaxlces and as such any angle which accomplishes the goal. of deflecting bristles (4) mounted thereon towards the centre of the mounting bar (5), resulting in the direction of material throw by said bristles towards the centre of the zo mounting bar (5), xather than straight ahead, xs >Yoz~templated within the scope of the px'esexat invention.
Bristles of various materials could be used_ Fox example, metal wire, plastic or other matexi.als could be used, so long L- 1-UU; J:LLYIVI;t-Uflllnll & tlbl I IU H'~a 41h'U: fllblll fIU, ;T~I JUb J'~
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I
F&~C 512-03-04 as they provided the necessary rigidity and pliable charaCGeTistics to properly accomplish their job. Insofar as the material of manufacture of the bristles (4) is not directly relevant to the efficiency or operation of the s apparatus of the present invention, it will be understood that all materials of manufacture are car~templated within the scope of the present inve~ztian- -The deflected mounting seotions (e) of the bristle mounting ~u edge (7) do not reach all the way to the centre of the mounting bar (5). There is a ae~clltre seotion (9} between the deflected mouritix~,g sections (8), clang which also there are bristles (4) mounted. In one embodiment, as shown, the oentre section ( 9 ) of the bristle mc~~xr~ting edge ('7 ) might be shaped 15 relatively straight, such that bristles (4) mounted thereon.
extend straight outwards from the mauz~tlng bar (5), and when the mounting box (5) is mounted properly on a rotary brush ox brush Core the bristles (4) will extend outwards approximately xadially from the centre of the cylindrical brush core. zt yo will be understood, hot~rever, that a further alteration which could be made to modify the performance of the present invention ~rould be to angle the bristle mounting edge (7) ins relation to the brush aGtaehmex~t edge (5), which would optionally alter the aggx'essivene$s of the behaviour of the L- 'I-UU~ 3:LGh'IVI;~Ufflltlfl & 11l111IU hi~G 41h'U: fl1t1111 fIU~ ~T~I 3Vb Jb~ 470 iF L1! 3.7 F&TL 512-03-D4 bristles (4). It will be understood that this modification is also contemplated within the scope of the present inve~ntiari.
Figure 3 demonstrates the mounting box (5) of the present s invention from a tap view, while Figure 2 is a perspective view of the mounting bar of the embodiment Qf Figures 1 and 3, partiGUlarly demonstrating the deflected mounting sections (8) -along the br~.stle mounting edge ('7) .
>Ip It will be understood that the angle of deflection might be a sharp angle ar alternatively might be a gentle bend or arcuate shape. rt will be understood that any such angle or bend placed along the bristle mounting edge (7) which accomplishes the goal of directing the throw of bristles (4) mounted ~s thereon towards the centre of the mounting box (5) is contemplated within the scope Qf the present invention_ figure ~l demonstrates an embodiment of the rotary brush of the present invention, whereby the bristle assemblies described in 2v relation to Figures 1 to 3 are mounted on a cylindrical brush core_ Figure 4 demonstrates the utility of the straight brush attachment edge (6) versus the arcuate mounting arms of the prior art.
"", ". «~ .,,, .., ,~"." a ,~ , ~ ~ " "d,. ,. , " , ~~ , ~, ",. , , ~ ".,., ..v., "...", ,. «, "..
F&K 512-Q3-04 Figures 5 and 6 are cY'oss-sectional views of the embodiment of Figure 4. As an ez~d cross-section, this figure demonstrates the appearance of the bristles (4) attached in the deflected mounting sections (8) of each bristle assembly (3). Also shown is a brush core (2) terhich can be mounted along its axis and rotated in a swath to sweep debris ar other mater~.al fxom the surface being cleaned forward into an elevator or other receptacle.
to Figure 6 is a centre cross-section of the embodiment of Figure 4 which demonstrates the positioning of the bristles (~) ~.~n the central section (9) of the mounting bar(5). In that case it can be seen that the bristles (4) in the central section (9} of the mounting bax~ (5), when the bristle assembly (3} is ~s mounted in position an the brush core (a) , extend outwards approximately radially from the centre of the brush coxe (~).
This will provide for the most aggressive cleaning behaviour of Che majority of the bristles (4) of each bristle assembly zo in addition to the rotar~r brush Shawn in the figures of the present invention, the bristle assembly itself as described in relation to these Figures and embodiments is also intended to be within the scope of the present invention as claimed, L I VV~ J~LLrIVIII V1111411 (% 11U11IV ~'ItJU 4lrV~ IIIUIII IIVn ~' I JVV VJJ
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F&~C 512-03-04 - k'age 1~ -Thus it can be seen that the invention accomplishes all of irs stated objectives. The faregoi.ng is considered as illustrative only' of the principles of the ixxvontion_ Further, since numerous changes and modificatlQns will readily occur to those skilled ix~ the art, it is not desired to limit the invention to the exact construction and operation shown and deSCY'lb~d, and accordingly, all such suit~Ie Changes or modifications in structure or operation which may be resorted to are intendcbd to fall within the sCOpe of tk~e claimed iD invention.
s This invention is in the field of street cleaning equipment, and more pa,x'ticularly deals with improvements to a rotary brusk~ which will result in a decreased amount of debris being -thrown outside of the swath of the rotary brush.
to sxcx~y The main element of a mechanical street sweeping mechanism is a large rotary pickup brush which is mounted at the rear of 1s the chassis of the street sweeper. This pickup brush is generally a variation on a basic design ~ a cylindrical brush core is rotatably mounted on axis parallel to the rear of the ' street sweeping unit such that the core can be rotatably mounted on an axle or the like and rotated in a circular 2o direction towards the remainder of the street sweeping unit, ix7, the direction of travel of the street sweeping unit.
Bristle assemblies are attached about the outer surface of the bx'ush Core such that as the brush Gore is rotated towards the .. , ... . , , ,. . , v ,. ,.. ... ~ ~... . . ~ , ~ ,. . ~ , .. " ,. .....,..
,. ,. ,.... .. .. . .. ,.
~&K 512-03-04 remainder of the street sweeping unit, debris can be swept from the surfaCE passing below the pickup brush into an elevator for deposit in a reservoir and removal.
s ~'he bristle assemblies themselves generally consist of a straight mounting bar outwards from which extend a number of pliable bristles. In order that debris swept forward by the bristle assembly be swept towards the center of the street sweeping unit and not off to one side, the bristle assemblies ao are mounted straight across the brush core such that as each bristle assembly is rotated into brushing position along the relative bottom of the brush core. in contact with the surface I
being cleaned, the mounting bar of the bristle assembly and the row of bristles extending therefrom are parallel to the I ~s caliection area of the elevator. To view such a conventional pickup brush from the side, the bristles extend outwards approximately x'adially from tk~.e center of the brush core _ The radial orientation o~ the bristles and bristle assemblies in relation to the brush core provides for the most effecti-cre and ZD most aggressive brushing movement by the bristles as they pass over the surface being cleaned.
The pliable bristles towards each end of each bristle asse~ly will in many cases throw dust or debris up and outside of the F&K 512-03-04 swath of the pickup brush as they sweep across the surface arid snap back into their resting position as the brush continues to rotate. Small deposits or taws of debris end up being deposited or left on the surface being cleaned along the edges of the pickup brush swath.
The first attempts t4 avoid this problem involved the addition of xetaining walls extending back from the elevator to a position past the side of tha pickup brush. In the industry to these are commonly referred to as drag shoes. The drag shoes are allowed to drag along the street surface and stop any debris from flying' outside of the swath of the pickup brush.
pne of the major problems with street sweepers ,xsing drag shoes, as is evident from the name of that component, is that is the constant drag of these debris guides on the road surface results in thei.x need to be ohaxxged quite regularly due to wear and tear. Ins addition to the downtime of the street sweeping unit CZuring the change of such components, there is considerable additional cost both in terms a~ labor and parts, zo to maintain these parts in working condition. Tt is particularly problematic because as the drag shoes wear, thei.x effectiveness is decreased. Drag shoes are als4 not completely affective in a situaGzolt'1. whexe the surface being cleaned is 'v'ery dirty.
F&K 512-03-04 - Pale 5 -It would be advantageous to be able to reduce the amount of debris thrown outside of the swath of the pickup brush on a street sweeper without having to change the shape of the m4untir~g bar of the bristle assemblies from being straight, s~.xlce the straight bristle assemblies are far easiex' to mount, build axed maintain. In addition, be~,xxg able to maintain the orientariori of the bx'istles of the bristle assemblies when mounted as extend,~.ng outwards approximately radially from the to center of the brush core pro~rides for the most aggressive oleaning motion by the pickup brush.
S'U1~~ARY OF I I
It is the object of the present invention to pr'ovxde a rotary brush for use in such applioations as the pickup brush on a mechanical street sweeper which brush would decrease the 2mouT7,t of debris or dust thrown outside of the path or swath of the brusk~_ zt is the further object of the present invention to provide such a rotary brush wherein the portion of tho mounting bar of each bristJ.e assembly which is used to attach the bristle assembly to the brush core remaix~,s straight and the majority of the bristles extend radialJ.y Qutward from F&K 512-03-04 the centre of the brush. care.
The invention discloses a rotary brush comprising a cylindrical brush core with a plurality of bristle assemblies s displaced thereon, each bristle assembly having a plurality of bristles extending outward therefrom, a plurality of bristles near each end of each bristle assembly being mounted such that their material throw will be towards the oentxe of said bristle assembly and cylindrical bx'ush_ The remainder of the to bristles of each bristle assembly could extend approximately radially outwards from the brush core and the material throw of these bristles might be directly ahead of the brush where said brush is rotated about its axis.
15 The bristles xzear the end of each bristle assembly of this rotaxy brush would be deflsoted to~rards the centre of the brush.
More particularly, there is disclosed a rotary brush 20 compz'ising a cyllridx'xcal brush core, and a plurality of bristle assemblies attached about the outer surface of said brush coxe, each said bristle assembly having two ends and each sand bristle assembly comprising a mountixzg bar, said mounting bar having a brush attachment edge and a bristle F&K 512-03-D4 mounting edge; and bristles attached along and extending outward from the bristle mounting edge of said mounting bar, wherein the bristles at or near the ends of said mounting bar are deflected towards the centre of the mounting bar while the remainder of the bristles extend approximately radially outward from the cexitre of said brush core.
It is particularly contemplated that the bristles near each end of each bristle assembly could be deflected towards the io centre of the bristle assembly by az~,c~ling each of the ends of the bristle mounting edge inwards towards the centre of the mounting bar at an angle of deflection. As such, the bristles attached along the bristle mounting edge in this angled section would be al~:~led inwards, arid the remainder of the i5 bristles could remain substantially straight, extending radially outwards from the centre of the cylindrical brush core.
This bristle assembly might have a mounting bar witk~ a bri$tle zo mounting edge that comprised a central section and a deflected mounting section at each end thereof, wherein each said deflected mounting section was bent towards the central section at an angJ.e of deflection-"" , ., . « . , , ,. , ",. , ~ .~ ",. , , ", " d ,. ." ~ " . ". ~ , ". , , ~
."", .,.,., ,... ~ .. .. , t, .,., F&K 512-03-04 - page 8 -Since the majority of the bristles of the bristle assembly of the present invention will be mounted such that they extend outwards approximately radially from the centre of the brush care, the sweeping motion of the bristle assembler and rotary brush of tae present invention will be most aggressive. As well, since the angled portions of each end of the bristle assembly do not exteYld all the way to the centre of the bristle assembly, i.e. a V shape is z~ot formed, debris swept forward by the brush w111 not be thrown all the way to the to centre of tk~e swath and the elevator can then be counted on to work at its maximum efficiency. The angle of deflection at each end of the bristle assembly could be adjusted in manufacture far various situations and it will be understood that various angles are contemplated within the scope of the 1s present ~nvention_ The brush attachment edge of the mounta.z~g bar of the bristle assemblies would optimally be straight. Similarly, the central section of the bristle mounting edge would also 20 opt7.mally be stxaight, although it will be understood that other prof~.les cculd be given to the central section of the bristle mounting edge without departing from the sCOpe and intent of the claimed invention.
L I VV~ J-LLfl4l~l UIIIIUII W C\UI I IV 11'dU 411 V- IIIUIII IIVn I' I JVV JJJ
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F&x ssz-o3-o4 Since the brush attach-ment edge of each bristle assembhy would remain straight, the assembly of the rotary brush of the present invention by attaching the bristle assemblies to tk~e brush core would be quick and easy since they axe all attached s in straight lines. 'fhe laboux requirements would be less and the mounting hardware might also be decreased. Repair of the brush by replacement and removal of individual bristle assemblies would also be easier.
~o Given the straight nature of Ghe bxush attachment edge of the bristle assembly of the present invention, it will be understood that the bristle assembly of thg present irxvention eQUld also be used as a retrofit item on older cylindrical brush cares. This would allow fo'r' the mQC~ification of 1~ preexisting street sweepixzg equipment or other rotary brush equipment for ir~ereased performance and reduced throw butside of the swath of the brush.
The present invention, ix~ addition to being a complete xotary zp brush assembly', also includes the bristle assetr~bly designed for use therewith.
DESCRIP~IIQN OF THE DRAWINGS:
t- i-uu; a:tcrm;rurninr~ ry rtm i iv Hda mru: roam nv. ;ti sue a5v a~na a vai ,sa F&~C 57,x-03-04 While the invention is claimed in the concluding portions hereof, preferred embodiments are provided in the accotttpanying detailed description which may be best understood in conjuriC~.iQn with the accompanying diagrams where like parts in each of the several diagrams are labeled with like x~umlaers, and where:
Figure 1 is a side view of one embodiment of a brist7.e lp assembly of the present invention;
Figur$ 2 is a perspective view of the mounting bar of the embodiment of Figure 1;
F~,gure 3 is a top view of the embodiment of Figure 1;
Figure 4 shows one embod~.ment of a rotary brush, demonstrating the mQUntinc~ of bristle assemblies such as those of Figuxes 1 to 3 on a cylindrical brush pore;
2p Figure 5 shows an end cross section of one embodiment of a rotary bxush empla~ring the bristle assemblies of Figures ~. to 3 , which demonstrates the angled ends Qf the bristle assemblies; and L- I-UU~ J.LL1'IVI~rUilllt7tl 61 I~2ll I IU r'i1j77 UII"U. IIIt7111 fIU~ DTI
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F&K 512-03-04 Figure 6 is a crass section of the centre of the brush of Figure 5, demonstrating the radial dxspo$ition of the majority of the bristles.
DETAINED DESC3i N OF k~D ~DDI~E~TTS
Ar, outlined above, the present inveritiori is a modified cylindrical brush for use Qn a street sweeper of the like, which will reduce or' eliminate the throw of material outside the swath of the brush and avoid same of the pxablems associated with arcuate bristle assemblies currently known ire the art . Figures 1 to ~ demonstrate orxe embodiment of the bristle assembly of the pxesent invention. There is shown the is bristle assembly (~), whioh consists of a mounting bar (5) with bristles (4) mounted thereon. The mounting bar (s) has a brush attachment edge (6) and a bxistle mounting edge (7).
As can be seen from these figures, the mountixzg bar (5) is essentially straight, particularly along its brush attachment zo edge (6). 8y making the brush attaehmEnt edge (5) stxaight, the bristle assembly (3) of the present invention can most easily and quickly be mounted onto a brush core and removed individually for change or repair. The mounting bar t5) and bristle assembly (3) each have two ends (10). As can be seen L I V V ~ J ~ L L f I VI ~ I U I I I I U I I W f \ U I I I V f'I Fj U 4 I r V
~ I I I U I I I I I V n ~ ' I V V V V V J V ;J V V T I V I V V
F&K 512-03-fl4 - Page Z2 -from Figures 3 to 5, bristles (4) are attached along axed extend outward from the bristle mounting edge (~) of the mounting bar (5) . The key of tk~e pxesent invention is that the bristles (4) at or near the ends (10) of the mounting bar (5) are de~J~eeted towards the centre of the mounting bar (5).
Iri this fashion, the material throw from the bx'istles (4) closest to the ends (10) of the maun,ting bar will be towards the centre of the mounting bar (5) and the bristle assembly t3) and the brush to whxck~ it ie attached. The remainder of 1o the bristles (~), towards the centre of the mounting bar (5), would remain oriented such that their material throw would be straight ahead c~f the bristle assembly (3) as the bristle assembly (3) and its attached bristles (~) were moved across the ground. Thus, the material throw of the entire bristle is assembly (3) into the elevator or other collection de'u'iCe would remain relatively e~ren, rather than concentrating the material throw all at the centre of the mounting bar (5) as would be the case in a conventional arcuate bristle assembly .
situation.
The portions of the bristle mounting edge ('7) closest to eaoh end (10) of the mounting bar, which portions Iwo~txld be angled j.zlwards towards the centre of the moixnting bar (51 at an angle of deflection, would be the deflected maunting sections (~) of L- 1-UU; 3: LLYIVI;t-Uf flltlfl ik ttG I I I U NAG 41 NU: fIIG I II IIU~ ;T'I
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F&K 512-03-04 - Page l~ -the bristle mounting edge (7). The deflected mounting secti4ns (8) would not reach all the way to the centre of the mQUnting bar (5), rather there would be a straight centre section (9) of the mounting bar (5) between the de~~,e>Yted mountinrj sections (8) . The defJ.ected mpunting sections (8) at each end (10) of the mounting bar would accomplish the goal of deflecting the bristles (4) closest to each end (10) t6wa~'ds -the centre of the mounting bar (5), while leaving the remainder of the bristles (~) in a standard straight line ~o across the bristle mounting edge (?).
It will be understood that the angle of dsfl~Ctiori of the deflected mounting sections (8), in relation to the remainder of the bristle rnou~xting edge (?) and particularly tk~e centre section (9) thereof, Could be varied in manufacture for various circumstaxlces and as such any angle which accomplishes the goal. of deflecting bristles (4) mounted thereon towards the centre of the mounting bar (5), resulting in the direction of material throw by said bristles towards the centre of the zo mounting bar (5), xather than straight ahead, xs >Yoz~templated within the scope of the px'esexat invention.
Bristles of various materials could be used_ Fox example, metal wire, plastic or other matexi.als could be used, so long L- 1-UU; J:LLYIVI;t-Uflllnll & tlbl I IU H'~a 41h'U: fllblll fIU, ;T~I JUb J'~
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F&~C 512-03-04 as they provided the necessary rigidity and pliable charaCGeTistics to properly accomplish their job. Insofar as the material of manufacture of the bristles (4) is not directly relevant to the efficiency or operation of the s apparatus of the present invention, it will be understood that all materials of manufacture are car~templated within the scope of the present inve~ztian- -The deflected mounting seotions (e) of the bristle mounting ~u edge (7) do not reach all the way to the centre of the mounting bar (5). There is a ae~clltre seotion (9} between the deflected mouritix~,g sections (8), clang which also there are bristles (4) mounted. In one embodiment, as shown, the oentre section ( 9 ) of the bristle mc~~xr~ting edge ('7 ) might be shaped 15 relatively straight, such that bristles (4) mounted thereon.
extend straight outwards from the mauz~tlng bar (5), and when the mounting box (5) is mounted properly on a rotary brush ox brush Core the bristles (4) will extend outwards approximately xadially from the centre of the cylindrical brush core. zt yo will be understood, hot~rever, that a further alteration which could be made to modify the performance of the present invention ~rould be to angle the bristle mounting edge (7) ins relation to the brush aGtaehmex~t edge (5), which would optionally alter the aggx'essivene$s of the behaviour of the L- 'I-UU~ 3:LGh'IVI;~Ufflltlfl & 11l111IU hi~G 41h'U: fl1t1111 fIU~ ~T~I 3Vb Jb~ 470 iF L1! 3.7 F&TL 512-03-D4 bristles (4). It will be understood that this modification is also contemplated within the scope of the present inve~ntiari.
Figure 3 demonstrates the mounting box (5) of the present s invention from a tap view, while Figure 2 is a perspective view of the mounting bar of the embodiment Qf Figures 1 and 3, partiGUlarly demonstrating the deflected mounting sections (8) -along the br~.stle mounting edge ('7) .
>Ip It will be understood that the angle of deflection might be a sharp angle ar alternatively might be a gentle bend or arcuate shape. rt will be understood that any such angle or bend placed along the bristle mounting edge (7) which accomplishes the goal of directing the throw of bristles (4) mounted ~s thereon towards the centre of the mounting box (5) is contemplated within the scope Qf the present invention_ figure ~l demonstrates an embodiment of the rotary brush of the present invention, whereby the bristle assemblies described in 2v relation to Figures 1 to 3 are mounted on a cylindrical brush core_ Figure 4 demonstrates the utility of the straight brush attachment edge (6) versus the arcuate mounting arms of the prior art.
"", ". «~ .,,, .., ,~"." a ,~ , ~ ~ " "d,. ,. , " , ~~ , ~, ",. , , ~ ".,., ..v., "...", ,. «, "..
F&K 512-Q3-04 Figures 5 and 6 are cY'oss-sectional views of the embodiment of Figure 4. As an ez~d cross-section, this figure demonstrates the appearance of the bristles (4) attached in the deflected mounting sections (8) of each bristle assembly (3). Also shown is a brush core (2) terhich can be mounted along its axis and rotated in a swath to sweep debris ar other mater~.al fxom the surface being cleaned forward into an elevator or other receptacle.
to Figure 6 is a centre cross-section of the embodiment of Figure 4 which demonstrates the positioning of the bristles (~) ~.~n the central section (9) of the mounting bar(5). In that case it can be seen that the bristles (4) in the central section (9} of the mounting bax~ (5), when the bristle assembly (3} is ~s mounted in position an the brush core (a) , extend outwards approximately radially from the centre of the brush coxe (~).
This will provide for the most aggressive cleaning behaviour of Che majority of the bristles (4) of each bristle assembly zo in addition to the rotar~r brush Shawn in the figures of the present invention, the bristle assembly itself as described in relation to these Figures and embodiments is also intended to be within the scope of the present invention as claimed, L I VV~ J~LLrIVIII V1111411 (% 11U11IV ~'ItJU 4lrV~ IIIUIII IIVn ~' I JVV VJJ
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F&~C 512-03-04 - k'age 1~ -Thus it can be seen that the invention accomplishes all of irs stated objectives. The faregoi.ng is considered as illustrative only' of the principles of the ixxvontion_ Further, since numerous changes and modificatlQns will readily occur to those skilled ix~ the art, it is not desired to limit the invention to the exact construction and operation shown and deSCY'lb~d, and accordingly, all such suit~Ie Changes or modifications in structure or operation which may be resorted to are intendcbd to fall within the sCOpe of tk~e claimed iD invention.
Claims (16)
1. A rotary brush comprising a cylindrical brush core with a plurality of bristle assemblies displaced thereon, each bristle assembly having a plurality of bristles extending outward therefrom, wherein bristles near each end of each bristle assembly are mounted such that their material throw will be cowards the centre of said cylindrical brush and the remainder of the bristles along the central portion of each bristle assembly are mounted such that their material throw will be straight ahead of said cylindrical brush.
2. The rotary brush of Claim 1 wherein the bristles near each end of the bristle assembly are deflected towards the centre of the brush.
3. The rotary brush of Claim 1 wherein the bristles along the central portion of each bristle assembly extend approximately radially outwards from the brush core.
4. A rotary brush, comprising:
a) a cylindrical brush core, which brush core can be rotated along the central axis of said cylinder;
and b) a plurality of bristle assemblies attached about the outer circumference of said brush core, each sand bristle assembly having two ends and each said bristle assembly comprising:
i) a mounting bar, said mounting bar having a brush attachment edge and a bristle mounting edge; and ii) bristles attached along and extending outward from said bristle mounting edge, wherein the bristles at or near the ends of said mounting bar are deflected towards the centre of the mounting bar at an angle of deflection, the portions of the bristle mounting edge near each end of said mounting bar and which are deflected towards the centre of said mounting bar being deflected mounting sections.
a) a cylindrical brush core, which brush core can be rotated along the central axis of said cylinder;
and b) a plurality of bristle assemblies attached about the outer circumference of said brush core, each sand bristle assembly having two ends and each said bristle assembly comprising:
i) a mounting bar, said mounting bar having a brush attachment edge and a bristle mounting edge; and ii) bristles attached along and extending outward from said bristle mounting edge, wherein the bristles at or near the ends of said mounting bar are deflected towards the centre of the mounting bar at an angle of deflection, the portions of the bristle mounting edge near each end of said mounting bar and which are deflected towards the centre of said mounting bar being deflected mounting sections.
5. The rotary brush of Claim 4 wherein said bristle mounting edge comprises a central section and a deflected mounting section at each end thereof, wherein said deflected mounting sections are each bent inwards towards the central section at an angle of deflection.
6. The rotary brush of Claim 5 wherein the deflected mounting sections do not reach the centre of said mounting bar.
7. The rotary brush of Claim 5 wherein the central section of the bristle mounting edge, between the deflected mounting sections, is straight.
8. The rotary brush of Claim 4 wherein the remainder of the bristles of each bristle assembly not deflected towards the centre of the mounting bar extend approximately radially outward from the centre of said brush core.
9. The rotary brush of Claim 4 wherein the ends of the bristle mounting edge are each angled inwards towards the centre of the mounting bar at an angle of deflection.
10. The rotary brush of Claim 4 wherein said brush attachment edge is straight.
11. A bristle assembly for use on a brush, said bristle assembly having two ends and comprising a mounting bar having a brush attachment edge and a bristle mounting edge; and bristles attached along and extending outwards from the bristle mounting edge, wherein the bristles at or near the ends at said mounting bar are deflected towards the centre of the mounting bar, the portions of the bristle mounting edge near each end of said mounting bar and which are deflected towards the centre of said mounting bar being deflected mounting sections.
12. The bristle assembly of claim 11 wherein the remainder of the bristles not deflected towards the centre of the mounting bar extend approximately straight outwards from the central section of the bristle mounting edge.
13. The bristle assembly of Claim 11 wherein said bristle mounting edge comprises a central section arid a deflected mounting section at each end thereof, wherein said deflected mounting sections are each bent inwards towards the central section at an angle of deflection.
14. The bristle assembly of Claim 11 wherein the deflected mounting sections do not reach the centre of said mounting bar.
15. The bristle assembly of Claim 11 wherein the central section, of the bristle mounting edge, between the deflected mounting sections, is straight.
16. The bristle assembly of Claim 11 wherein said brush attachment edge is straight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2297677 CA2297677A1 (en) | 1999-02-01 | 2000-02-01 | Rotary brush with decreased trash throw outside brush path |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2260560 CA2260560A1 (en) | 1999-02-01 | 1999-02-01 | Rotary brush with decreased trash throw outside swath |
| CA2,260,560 | 1999-02-01 | ||
| CA 2297677 CA2297677A1 (en) | 1999-02-01 | 2000-02-01 | Rotary brush with decreased trash throw outside brush path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2297677A1 true CA2297677A1 (en) | 2000-08-01 |
Family
ID=31888838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2297677 Abandoned CA2297677A1 (en) | 1999-02-01 | 2000-02-01 | Rotary brush with decreased trash throw outside brush path |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2297677A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20181124A1 (en) * | 2018-01-25 | 2019-07-26 | Aqua Robotics As | Rotatable brush for a submersible cleaner |
-
2000
- 2000-02-01 CA CA 2297677 patent/CA2297677A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20181124A1 (en) * | 2018-01-25 | 2019-07-26 | Aqua Robotics As | Rotatable brush for a submersible cleaner |
| NO344164B1 (en) * | 2018-01-25 | 2019-09-23 | Aqua Robotics As | Rotatable brush for a submersible cleaner |
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| EEER | Examination request | ||
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