CA2260560A1 - Rotary brush with decreased trash throw outside swath - Google Patents
Rotary brush with decreased trash throw outside swath Download PDFInfo
- Publication number
- CA2260560A1 CA2260560A1 CA 2260560 CA2260560A CA2260560A1 CA 2260560 A1 CA2260560 A1 CA 2260560A1 CA 2260560 CA2260560 CA 2260560 CA 2260560 A CA2260560 A CA 2260560A CA 2260560 A1 CA2260560 A1 CA 2260560A1
- Authority
- CA
- Canada
- Prior art keywords
- brush
- bristle
- swath
- debris
- bristles
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/008—Disc-shaped brush bodies
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/30—Brushes for cleaning or polishing
- A46B2200/3066—Brush specifically designed for use with street cleaning machinery
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.
Description
FsY siz-oa-o1 s This invention is in the field of cleaning equipment and brushes, and more particularly deals with improvements to the bristles on a rotary brush which will result in a decreased amount of debris being thrown outside of the swath of the brush.
o BACKGROUND:
The particular field to which the present invention pertains i5 is that of mechanical street sweepers such as that disclosed in Canadian Patent Application Ser. No. 2, 020, 201 by Hulicsko.
The main element of this sweeping mechanism is a large rotary pickup brush which is mounted at the rear Qf the chassis of the street sweeper. This pickup brush sweeps debris forward zo towards the front of the street sweeper and into an elevator which in turn deposits the debris in a hopper for eventual removal from the street sweeper unit.
Z9&-d 9Z/90 d 6Z9-1 9969-656-9061+ euisea-oip e~ ~ ue~uan~-moaj gg:g~ 66-l0-9e~
The pickup brush of these street sweeping units is a variation on a very 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 rotated in a circle towards the s remainder of the street sweeping unit. Bristle assemblies are attached about the outer surface of the brush core such that as the brush core is rotated towards the remainder of the street sweeping unit, debris can be swept from the surface passing below the pickup brush into the elevator. The pick-up xo brush can be raised or lowered.
A great deal of effort has been concentrated in the art on the mounting of the pickup brush and the elevator in relation to the chassis of the unit such that the swath of the pickup is brush is wide enough to cleanly sweep and collect debris froze the surface being swept in irregular situations such as during the turning of corners.
The bristle assemblies themselves generally consist of a zo straight mounting bar from which extend a number of pliable bristles made of plastic, metal or another material. The bristles extend straight out from the mounting bar. In order that debris swept forward by the bristle assembly be swept Z9B-d 9Z/~O d BZ8-1 9969-69fi-9081+ eu~teb-oip e~ p uemand-moad SE:gI 66-l0-9ed k'~K 512-03-O1 towards the center of the street sweeping unit and not off to one side, the bristle assemblies axe mounted straight across the brush core such that as each bristle assembly is rotated into brushing position along the relative bottom of the brush s core, in contact with the surface being cleaned, the mounting bar of the bristle assembly and the row of bristles extending 'therefrom are parallel to the collection area of the elevator.
To view such a conventional pickup brush fxom the side, the bristles extend outwards approximately xadially from the io center of the brush core. The radial orientation of the bristles and bristle assemblies in relation to the brush core provides for the most effective and most aggressive brushing movement by the bristles as they pass over the surface being cleaned.
is The bristle assemblies are generally removable from the brush core individually, such that they can be changed from time to time as the bristles wear down.
:o There is one problem inherent in the mounting of these bristle assemblies across the brush core. As can be imagined, the pliable bristles towards each end of each bristle assembly will in many cases flick dust or debris up and outside of the ZSE-d 52/80 d Et8-1 9969-66E-90E1+ euisea_oip e~ ~ uem nd-maad 9E~El 66-l0-9ed F&K 512-03-01 swath of the pickup brush as they sweep across the surface and then will come away from the surface and snap back into their resting position as the brush continues to rotate. In street sweepers using such a basic pickup brush, the problem exists of small deposits or rows of debris being deposited or left on the surface being cleaned along the edges of the pickup brush swath.
The first attempts to avoid this problem involved the addition ~to of retaining walls extending back from the elevator to a position past the side of the pickup brush. In the industry these are commonly referred to as drag shoes. The drag shoes axe allowed to drag along the street surface and stop any debris from flying outside of the swath of the pickup brush.
is One of the major problems with street sweepers using drag shoes, as is evident from the name of that component, is that the constant drag of thESe debris guides on the road surface results in their need to be changed quite regularly due to wear and tear. In addition to the downtime of the street Zo sweeping unit during the change of such components, there is considerable additional cost both in terms of labor and parts, to maintain these parts in working condition. It is particularly problematic because as the drag shoes wEar, their t9B-d 9Z/60 d 628-1 9969-656-9081+ euisea_oip e~ ~ ue~uand_~uoad 9881 66-l0-qad F&K 512-03-01 effectiveness is decreased. Drag shoes are also not completely effective in a situation where the surface being cleaned is very dirty.
s Other attempts have being made to decreased the side to side throw of debris outside of the swath of the pickup brush such that the need for the drag shoes is decreased, or their effectiveness is increased due to less debris being thrown in their direction. One such attempt which is known in the art ~o is the modification of the shape of the bristle assemblies.
One way of narrowing or eliminating the overthrow of the pickup brush outside of its swath is to aim the bristles near each end of each bristle assembly towards the center of the is swath. In at least one case, manufacturers in the industry have attempted to address this problem by changing the shape of the mounting bar of the bristle assembly from that of a straight bar to that of a modified arc. This prior art method is demonstrated in Figures 1 and 2.
There axe several problems associated with the changing of the overall shape of the bristle assembly. In the case of the mounting bar of the bristle assembly being modified from a d9~-d 9Z/Ol d EZ8-1 9969-69B-90E1+ euisea-oip e~ ~ uem nd-moad gg:g~ 66-l0-gad FsK 512-03-01 straight bar into a semi circle, the first problem which is encountered is that it is impossible to properly control the amount of debris which is swept to the center of the swath.
If the arc of the mounting bar is not sharp enough, the s performance of the bristle is not satisfactory and debris is still thrown out to the sides. Tf the arc is too much, all of the debris is thrown to the center of the elevator which does not work either. Where all of the debris is moved towards the center of the swath, the performance of the elevator can be ~o detrimentally affected because too much debris is moved towards the center of the unit. The elevator may have trouble picking up all of this debris, and the extreme ends of the elevator will be under utilized. As well, whexe too much debris is thrown to the center of the swath the bristles at xs the center of the swath will not work effectively and they will pass over some of the debris.
A second serious problem which is encountered with altering the shape of the mounting bar of the bristle assembly is that 20 of the increased complexity of assembling or maintaining the pickup brush. I't will be far more difficult to mount the bristle assemblies on the brush core. Additional mounting hardware may be required, and certainly additional time will Z9fi-~ BZ/ll d fiZ8-1 9969-69B-90B1+ euisea_oip e~ ~ ueman~_u~oy 9E~fil 66-l0-9a~
FsK 512-03-01 be necessary to properly mount the bristle assemblies on the brush core. Tt would likely be much more difficult to remove individual bristle assemblies from the brush core for repair or maintenance. In addition to the increased difficulty in using a semi circular shaped bristle assembly, they would also bE more difficult to manufacture.
As well, the overall sweeping behavior of the pickup brush is detrimentally affected by these alterations to the shape of 1o the mounting bar, since most of the bristles do not extend outwards radially from the axis of the brush core.
Some of the problems encountered with the semi circular bristle assembly might be avoided by providing for a modified xs straight mounting bar in each bristle assembly where only portions of the mounting bar closest to each end of said mounting bar would be bent into a semi circular pattern directing bristle throw towards the center of the brush swath.
While this might alleviate some of the problems associated ao with the movement of all of the debris to the center of the swath, and the ability of the elevator to deal with all of the debris being deposited at its center point, the problems encountered in the manufacture, installation and the use of Z9E-d 5Z/Zl d EZ9-1 9969-69E-90E1+ euisea-oip e~ ~ uemanj-moy 9E~El 66-l0-9ed the semi-circular bristle assemblies would still exist.
It would be advantageous to be able to reduce the amount of debris thrown outside of the swath of the pickup brush on a s street sweeper without having to change the shape of the mounting bar of the bristle assemblies from being straight, since the straight bristle assemblies are far easier to mount, build and maintain. In addition, being able to maintain the orientation of the bristles of the bristle assemblies when o mounted as extending outwards approximately radially from the center of the brush core provides for the most aggressive cleaning motion by the pickup brush.
15 SL1I~IARY O~' THE INVENTION
It is the object of the present invention to provide a rotary brush for use in such applications as the pickup brush on a mechanical street sweeper which brush would decrease the ao amount of debris or dust thrown outside of the path or swath of the brush.
Z9B-d 9Z/fil~d 6Z8-1 9969-69B-90E1+ euiteb-oip eH ~ ueWand_~uoy ZE:g~ 66-t0-9ed F~It 512-03-O1 Optimally, in a mechanical street sweeper application, it is the object of the present invention to provide significant enough reduction in the amount of debris thrown outside of the swath of the brush to eliminate or significantly reduce the s need for drag shoes.
It is the further object of the present invention to provide such a rotary brush with the ability to decrease the amount of debris thrown outside the swath of the brush, wherein the 1o portion of the mounting bar of each bristle assembly which is used to attach the bristle assembly to the brush core remains straight.
The invention, a rotary brush with decreased trash throw xs outside the swath of the brush, accomplishes its objects comprising a cylindrical brush core, which brush core can be rotatably mounted in position at its axis of rotation from its ends: and a plurality of bristle assemblies attached about the outer circumference of said brush core, each said bristle ao assembly comprising a mounting bar having a brush attachment edge for attachment to the brush core and a bristle mounting edge, and pliable bristles attached along the bristle mounting edge of said mounting bar, wherein the brush attachment edge Z9E-d 92/Yl d EZ9-1 9969-69E-90E1+ euisea-oip eH ~ uemm~-WOy ~E:E~ 66-l0-9ed FsY, 512-03-O1 is straight along its entire length and when attached to the brush core is approximately parallel to the axis of the brush core, and wherein the bristle mounting edge of said mounting bar is angled inwards towards the centre of the mounting bar s at one or both ends at an angle of deflection, which will result in the bristles mounted along these angled portions of said bristle mounting edge being deflected towards the centre of the mounting bar while the remainder of the bristles remain parallel to the axis of the brush core.
io 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 core, the sweeping motion of the bristle assembly and rotary is brush of the present invention will be more aggressive than those rotary brushes employing semi circular bristle assemblies. As well, since the angled portions of each end of the bristle assembly do not extend all the way to the centre of the bristle assembly, i.e. a v shape is not formed, debris Zo swept forward by the brush will not be thrown all the way to the centre of 'the swath and the elevator can then be counted on to work at its maximum efficiency.
Z96-d 9Z/91~d 6ZB-1 9969-696-9081+ eui~ea-oip eH ~ uemand-moad ~g:g~ 66-l0-9ed F&K 512-03-Ol The mounting bar of the present invention, with its straight brush attachment edge and angled bristle mounting edge, could be manufactured by die or by any number of other conventional art methods.
The bristles could be made of plastic, metal or any other conventional material.
The angle of deflection at each end of the bristle assembly ~o could be adjusted in manufacture for various situations and it will be understood that various angles are contemplated within the scope of the present invention.
Since the brush attachment edge of each bristle assembly would is remain straight, the assembly of the rotary brush of the present invention by attaching the bristle assemblies to the brush core would be quick and easy since they are all attached in straight lines. The labour requirements would be less and the mounting hardware might also be decreased. Repair of the zo brush by replacement a removal of individual bristle assemblies would also be easier.
Given the straight nature of the brush attachment edge of the Z9E-d 9Z/91 d EZ8-1 9969-65&-9081+ euiseb-oip e~ p uemand-moad ~E:g~ 66-l0-qad F&K 512-03-01 bristle assembly of the present invention, it will be understood that the bristle assembly of the present invention could also be used as a retrofit item on older cylindrical brush cores. This would allow for the modification of s preexisting street sweeping equipment or other rotary brush equipment for increased performance and reduced throw outside of the swath of the brush.
DESCRIPTION OF THE DRAWINGS:
While the invention is claimed in the concluding portions hereof, preferred embodiments are provided in the accompanying detailed description which may be best understood in is conjunction with the accompanying diagrams where like parts in each of the several diagrams axe labeled with like numbers, and where:
Figure 1 shows the mounting bar of a traditional straight zo bristle assembly, as well as the mounting bar of semicircular bristle assembly, and the mounting bar of the bristle assembly of the present invention;
Z9E-~ 9Z/~l d EZ8-1 9969-69E-90E1+ euisea_oip e~ ~ ueman~-WOa~ gE:E~ 66-l0-qad FMK 512-03-Ol Figure 2 shows the prior art bristle assembly which is formed into a semicircle to direct debxis to the center of the swath;
s Figure 3 demonstrates an embodiment of the bristle assembly of the present invention;
Figure 4 shows an end cross section rotary brush employing the bristle assemblies of Figure 3, which ~o demonstrates the angled ends of the bristle assemblies;
and Figure 5 is a cross section of the center of the brush of Figure 4, demonstrating the radial disposition of the i5 majority of the bristles.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS:
Z9E-~ 9Z/61 d BZ8-1 9969-69&-9081+ euisea-oip eH ~ uemanj-moat gg:g~ 66-l0-qed FsK 512-03-O1 Thus it can be seen that the invention accomplishes all of its stated objectives. The foregoing is considered as illustrative only of the principles of the invention.
s Further, since numerous changes and modifications will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all such suitable changes or modifications in structure or operation which may be resorted to axe intended to fall within the scope of the claimed invention.
Z96-d 9Z/61~d 6Z8-1 9969-696-9061+ euisea_oip e~ ~ uemand_u~oad 66:61 66-l0-9ed
o BACKGROUND:
The particular field to which the present invention pertains i5 is that of mechanical street sweepers such as that disclosed in Canadian Patent Application Ser. No. 2, 020, 201 by Hulicsko.
The main element of this sweeping mechanism is a large rotary pickup brush which is mounted at the rear Qf the chassis of the street sweeper. This pickup brush sweeps debris forward zo towards the front of the street sweeper and into an elevator which in turn deposits the debris in a hopper for eventual removal from the street sweeper unit.
Z9&-d 9Z/90 d 6Z9-1 9969-656-9061+ euisea-oip e~ ~ ue~uan~-moaj gg:g~ 66-l0-9e~
The pickup brush of these street sweeping units is a variation on a very 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 rotated in a circle towards the s remainder of the street sweeping unit. Bristle assemblies are attached about the outer surface of the brush core such that as the brush core is rotated towards the remainder of the street sweeping unit, debris can be swept from the surface passing below the pickup brush into the elevator. The pick-up xo brush can be raised or lowered.
A great deal of effort has been concentrated in the art on the mounting of the pickup brush and the elevator in relation to the chassis of the unit such that the swath of the pickup is brush is wide enough to cleanly sweep and collect debris froze the surface being swept in irregular situations such as during the turning of corners.
The bristle assemblies themselves generally consist of a zo straight mounting bar from which extend a number of pliable bristles made of plastic, metal or another material. The bristles extend straight out from the mounting bar. In order that debris swept forward by the bristle assembly be swept Z9B-d 9Z/~O d BZ8-1 9969-69fi-9081+ eu~teb-oip e~ p uemand-moad SE:gI 66-l0-9ed k'~K 512-03-O1 towards the center of the street sweeping unit and not off to one side, the bristle assemblies axe mounted straight across the brush core such that as each bristle assembly is rotated into brushing position along the relative bottom of the brush s core, in contact with the surface being cleaned, the mounting bar of the bristle assembly and the row of bristles extending 'therefrom are parallel to the collection area of the elevator.
To view such a conventional pickup brush fxom the side, the bristles extend outwards approximately xadially from the io center of the brush core. The radial orientation of the bristles and bristle assemblies in relation to the brush core provides for the most effective and most aggressive brushing movement by the bristles as they pass over the surface being cleaned.
is The bristle assemblies are generally removable from the brush core individually, such that they can be changed from time to time as the bristles wear down.
:o There is one problem inherent in the mounting of these bristle assemblies across the brush core. As can be imagined, the pliable bristles towards each end of each bristle assembly will in many cases flick dust or debris up and outside of the ZSE-d 52/80 d Et8-1 9969-66E-90E1+ euisea_oip e~ ~ uem nd-maad 9E~El 66-l0-9ed F&K 512-03-01 swath of the pickup brush as they sweep across the surface and then will come away from the surface and snap back into their resting position as the brush continues to rotate. In street sweepers using such a basic pickup brush, the problem exists of small deposits or rows of debris being deposited or left on the surface being cleaned along the edges of the pickup brush swath.
The first attempts to avoid this problem involved the addition ~to of retaining walls extending back from the elevator to a position past the side of the pickup brush. In the industry these are commonly referred to as drag shoes. The drag shoes axe allowed to drag along the street surface and stop any debris from flying outside of the swath of the pickup brush.
is One of the major problems with street sweepers using drag shoes, as is evident from the name of that component, is that the constant drag of thESe debris guides on the road surface results in their need to be changed quite regularly due to wear and tear. In addition to the downtime of the street Zo sweeping unit during the change of such components, there is considerable additional cost both in terms of labor and parts, to maintain these parts in working condition. It is particularly problematic because as the drag shoes wEar, their t9B-d 9Z/60 d 628-1 9969-656-9081+ euisea_oip e~ ~ ue~uand_~uoad 9881 66-l0-qad F&K 512-03-01 effectiveness is decreased. Drag shoes are also not completely effective in a situation where the surface being cleaned is very dirty.
s Other attempts have being made to decreased the side to side throw of debris outside of the swath of the pickup brush such that the need for the drag shoes is decreased, or their effectiveness is increased due to less debris being thrown in their direction. One such attempt which is known in the art ~o is the modification of the shape of the bristle assemblies.
One way of narrowing or eliminating the overthrow of the pickup brush outside of its swath is to aim the bristles near each end of each bristle assembly towards the center of the is swath. In at least one case, manufacturers in the industry have attempted to address this problem by changing the shape of the mounting bar of the bristle assembly from that of a straight bar to that of a modified arc. This prior art method is demonstrated in Figures 1 and 2.
There axe several problems associated with the changing of the overall shape of the bristle assembly. In the case of the mounting bar of the bristle assembly being modified from a d9~-d 9Z/Ol d EZ8-1 9969-69B-90E1+ euisea-oip e~ ~ uem nd-moad gg:g~ 66-l0-gad FsK 512-03-01 straight bar into a semi circle, the first problem which is encountered is that it is impossible to properly control the amount of debris which is swept to the center of the swath.
If the arc of the mounting bar is not sharp enough, the s performance of the bristle is not satisfactory and debris is still thrown out to the sides. Tf the arc is too much, all of the debris is thrown to the center of the elevator which does not work either. Where all of the debris is moved towards the center of the swath, the performance of the elevator can be ~o detrimentally affected because too much debris is moved towards the center of the unit. The elevator may have trouble picking up all of this debris, and the extreme ends of the elevator will be under utilized. As well, whexe too much debris is thrown to the center of the swath the bristles at xs the center of the swath will not work effectively and they will pass over some of the debris.
A second serious problem which is encountered with altering the shape of the mounting bar of the bristle assembly is that 20 of the increased complexity of assembling or maintaining the pickup brush. I't will be far more difficult to mount the bristle assemblies on the brush core. Additional mounting hardware may be required, and certainly additional time will Z9fi-~ BZ/ll d fiZ8-1 9969-69B-90B1+ euisea_oip e~ ~ ueman~_u~oy 9E~fil 66-l0-9a~
FsK 512-03-01 be necessary to properly mount the bristle assemblies on the brush core. Tt would likely be much more difficult to remove individual bristle assemblies from the brush core for repair or maintenance. In addition to the increased difficulty in using a semi circular shaped bristle assembly, they would also bE more difficult to manufacture.
As well, the overall sweeping behavior of the pickup brush is detrimentally affected by these alterations to the shape of 1o the mounting bar, since most of the bristles do not extend outwards radially from the axis of the brush core.
Some of the problems encountered with the semi circular bristle assembly might be avoided by providing for a modified xs straight mounting bar in each bristle assembly where only portions of the mounting bar closest to each end of said mounting bar would be bent into a semi circular pattern directing bristle throw towards the center of the brush swath.
While this might alleviate some of the problems associated ao with the movement of all of the debris to the center of the swath, and the ability of the elevator to deal with all of the debris being deposited at its center point, the problems encountered in the manufacture, installation and the use of Z9E-d 5Z/Zl d EZ9-1 9969-69E-90E1+ euisea-oip e~ ~ uemanj-moy 9E~El 66-l0-9ed the semi-circular bristle assemblies would still exist.
It would be advantageous to be able to reduce the amount of debris thrown outside of the swath of the pickup brush on a s street sweeper without having to change the shape of the mounting bar of the bristle assemblies from being straight, since the straight bristle assemblies are far easier to mount, build and maintain. In addition, being able to maintain the orientation of the bristles of the bristle assemblies when o mounted as extending outwards approximately radially from the center of the brush core provides for the most aggressive cleaning motion by the pickup brush.
15 SL1I~IARY O~' THE INVENTION
It is the object of the present invention to provide a rotary brush for use in such applications as the pickup brush on a mechanical street sweeper which brush would decrease the ao amount of debris or dust thrown outside of the path or swath of the brush.
Z9B-d 9Z/fil~d 6Z8-1 9969-69B-90E1+ euiteb-oip eH ~ ueWand_~uoy ZE:g~ 66-t0-9ed F~It 512-03-O1 Optimally, in a mechanical street sweeper application, it is the object of the present invention to provide significant enough reduction in the amount of debris thrown outside of the swath of the brush to eliminate or significantly reduce the s need for drag shoes.
It is the further object of the present invention to provide such a rotary brush with the ability to decrease the amount of debris thrown outside the swath of the brush, wherein the 1o portion of the mounting bar of each bristle assembly which is used to attach the bristle assembly to the brush core remains straight.
The invention, a rotary brush with decreased trash throw xs outside the swath of the brush, accomplishes its objects comprising a cylindrical brush core, which brush core can be rotatably mounted in position at its axis of rotation from its ends: and a plurality of bristle assemblies attached about the outer circumference of said brush core, each said bristle ao assembly comprising a mounting bar having a brush attachment edge for attachment to the brush core and a bristle mounting edge, and pliable bristles attached along the bristle mounting edge of said mounting bar, wherein the brush attachment edge Z9E-d 92/Yl d EZ9-1 9969-69E-90E1+ euisea-oip eH ~ uemm~-WOy ~E:E~ 66-l0-9ed FsY, 512-03-O1 is straight along its entire length and when attached to the brush core is approximately parallel to the axis of the brush core, and wherein the bristle mounting edge of said mounting bar is angled inwards towards the centre of the mounting bar s at one or both ends at an angle of deflection, which will result in the bristles mounted along these angled portions of said bristle mounting edge being deflected towards the centre of the mounting bar while the remainder of the bristles remain parallel to the axis of the brush core.
io 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 core, the sweeping motion of the bristle assembly and rotary is brush of the present invention will be more aggressive than those rotary brushes employing semi circular bristle assemblies. As well, since the angled portions of each end of the bristle assembly do not extend all the way to the centre of the bristle assembly, i.e. a v shape is not formed, debris Zo swept forward by the brush will not be thrown all the way to the centre of 'the swath and the elevator can then be counted on to work at its maximum efficiency.
Z96-d 9Z/91~d 6ZB-1 9969-696-9081+ eui~ea-oip eH ~ uemand-moad ~g:g~ 66-l0-9ed F&K 512-03-Ol The mounting bar of the present invention, with its straight brush attachment edge and angled bristle mounting edge, could be manufactured by die or by any number of other conventional art methods.
The bristles could be made of plastic, metal or any other conventional material.
The angle of deflection at each end of the bristle assembly ~o could be adjusted in manufacture for various situations and it will be understood that various angles are contemplated within the scope of the present invention.
Since the brush attachment edge of each bristle assembly would is remain straight, the assembly of the rotary brush of the present invention by attaching the bristle assemblies to the brush core would be quick and easy since they are all attached in straight lines. The labour requirements would be less and the mounting hardware might also be decreased. Repair of the zo brush by replacement a removal of individual bristle assemblies would also be easier.
Given the straight nature of the brush attachment edge of the Z9E-d 9Z/91 d EZ8-1 9969-65&-9081+ euiseb-oip e~ p uemand-moad ~E:g~ 66-l0-qad F&K 512-03-01 bristle assembly of the present invention, it will be understood that the bristle assembly of the present invention could also be used as a retrofit item on older cylindrical brush cores. This would allow for the modification of s preexisting street sweeping equipment or other rotary brush equipment for increased performance and reduced throw outside of the swath of the brush.
DESCRIPTION OF THE DRAWINGS:
While the invention is claimed in the concluding portions hereof, preferred embodiments are provided in the accompanying detailed description which may be best understood in is conjunction with the accompanying diagrams where like parts in each of the several diagrams axe labeled with like numbers, and where:
Figure 1 shows the mounting bar of a traditional straight zo bristle assembly, as well as the mounting bar of semicircular bristle assembly, and the mounting bar of the bristle assembly of the present invention;
Z9E-~ 9Z/~l d EZ8-1 9969-69E-90E1+ euisea_oip e~ ~ ueman~-WOa~ gE:E~ 66-l0-qad FMK 512-03-Ol Figure 2 shows the prior art bristle assembly which is formed into a semicircle to direct debxis to the center of the swath;
s Figure 3 demonstrates an embodiment of the bristle assembly of the present invention;
Figure 4 shows an end cross section rotary brush employing the bristle assemblies of Figure 3, which ~o demonstrates the angled ends of the bristle assemblies;
and Figure 5 is a cross section of the center of the brush of Figure 4, demonstrating the radial disposition of the i5 majority of the bristles.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS:
Z9E-~ 9Z/61 d BZ8-1 9969-69&-9081+ euisea-oip eH ~ uemanj-moat gg:g~ 66-l0-qed FsK 512-03-O1 Thus it can be seen that the invention accomplishes all of its stated objectives. The foregoing is considered as illustrative only of the principles of the invention.
s Further, since numerous changes and modifications will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all such suitable changes or modifications in structure or operation which may be resorted to axe intended to fall within the scope of the claimed invention.
Z96-d 9Z/61~d 6Z8-1 9969-696-9061+ euisea_oip e~ ~ uemand_u~oad 66:61 66-l0-9ed
Claims
1.
Priority Applications (2)
| 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 |
| CA 2297677 CA2297677A1 (en) | 1999-02-01 | 2000-02-01 | Rotary brush with decreased trash throw outside brush path |
Applications Claiming Priority (1)
| 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2260560A1 true CA2260560A1 (en) | 2000-08-01 |
Family
ID=29555061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2260560 Abandoned CA2260560A1 (en) | 1999-02-01 | 1999-02-01 | Rotary brush with decreased trash throw outside swath |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2260560A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851374A (en) * | 2020-07-22 | 2020-10-30 | 朱运灿 | Clean mechanism of rail guard in middle of municipal administration environmental protection is with road |
| EP4085764A1 (en) * | 2018-01-25 | 2022-11-09 | Aqua Robotics AS | Cleaning device for a submerged surface |
-
1999
- 1999-02-01 CA CA 2260560 patent/CA2260560A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4085764A1 (en) * | 2018-01-25 | 2022-11-09 | Aqua Robotics AS | Cleaning device for a submerged surface |
| CN111851374A (en) * | 2020-07-22 | 2020-10-30 | 朱运灿 | Clean mechanism of rail guard in middle of municipal administration environmental protection is with road |
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| Date | Code | Title | Description |
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