Dual mode debris pickup machine

Information

  • Patent Grant
  • 6389641
  • Patent Number
    6,389,641
  • Date Filed
    Monday, June 15, 1998
    26 years ago
  • Date Issued
    Tuesday, May 21, 2002
    22 years ago
Abstract
A vacuum trash collection vehicle includes a debris container and a source of vacuum on the vehicle. There is a hose connected at one end to the debris container and has the source of vacuum applied thereto. The hose is open at its other end to form a debris collection nozzle. There is a boom for supporting the hose during use as a debris collection device. A vacuum pickup head is carried by the vehicle and there are operator controls for raising and lowering the pickup head. The pickup head has an opening of a size and shape to be connected to the hose nozzle. There is a driver accessible control for moving the hose and boom to utilize the hose nozzle as a debris collection device. The hose may be connected to the pickup head opening and thereby provide vacuum to the pickup head so that it functions as a debris collection device.
Description




THE FIELD OF THE INVENTION




The present invention relates to vacuum trash collection vehicles of the type using a boom supported hose which extends over the driver's head as a debris collection device. Such hoses may have a diameter of, for example, eight inches. The present invention is an improvement on such a vehicle by providing a pickup head mounted on the front of the vehicle as an alternate debris collection device. When the pickup head is to be used, the hose is connected to an opening thereon to provide its source of vacuum. The operator, who sits on the vehicle, has the option of using either the hose to pick up isolated or scattered debris or the pickup head to pick up debris which may be concentrated in a particular area.




U.S. Pat. Nos. 3,710,412, 5,058,235, 5,138,742 and 5,519,915 all show vehicles of the general type described in that they each show a driver operated vehicle having a boom supported hose for manipulation by the driver. However, none of such vehicles have a pickup head as an alternate means of debris collection. The present invention is thus a substantial improvement on the prior art by providing both a hose to pick up scattered debris and a pickup head to collect concentrated debris.




SUMMARY OF THE INVENTION




The present invention relates to vacuum trash collection vehicles and particularly such vehicles which utilize a large diameter flexible hose, boom supported, for driver manipulation to collect debris.




A primary purpose of the invention is a trash collection vehicle of the type described which utilizes a vehicle-mounted pickup head as an alternate debris collection device with the pickup head receiving its vacuum when the hose is connected thereto.




Another purpose of the invention is to provide a trash collection vehicle of the type described having alternate pickup devices for use by the operator.




Another purpose of the invention is to provide a vehicle as described in which the pickup head has the vacuum opening at one side thereof and has an opening in its peripheral skirt on the opposite side whereby air travels across the width of the pickup head to provide increased air velocity for debris pickup.




Other purposes will appear in the ensuing specification, drawings and claims.











BRIEF DESCRIPTION OF THE DRAWINGS




The invention is illustrated diagrammatically in the following drawings wherein:





FIG. 1

is a side view of a trash collection vehicle of the type disclosed herein;





FIG. 2

is an enlarged partial side view of the support boom;





FIG. 3

is a section along plane


3





3


of

FIG. 2

;





FIG. 4

is a bottom view of the boom support lever;





FIG. 5

is a section along plane


5





5


of

FIG. 2

;





FIG. 6

is an enlarged view of the connection between the telescopic control rod and the support element of

FIG. 5

;





FIG. 7

is an enlarged side view of the operator control assembly and its connection to the hose;





FIG. 8

is a top view of the operator handle;





FIG. 9

is a section along plane


9





9


of

FIG. 8

;





FIG. 10

is a top view showing the connection between the hose support ring and the hose yoke;





FIG. 11

is a partial enlarged side view of the vehicle showing the pickup head and its connection to the vehicle frame and front axle;





FIG. 12

is a top view of the pickup head and its connection to the vehicle front axle;





FIG. 13

is a front view of the pickup head and its connection to the vehicle frame;





FIG. 14

is a side view, on an enlarged scale, showing the debris canister and the mounting thereof on the vehicle frame;





FIG. 15

is a section along plane


15





15


of

FIG. 14

;





FIG. 16

is a side view of the deflector plate mounted in the debris collection plenum chamber;





FIG. 17

is an exploded view illustrating the trash collection canister and the rigid liners used therein;





FIG. 18

is a side view, in part section, of the debris canister;





FIG. 19

is an enlarged partial side view of the pivotal connection between the debris canister and the vehicle frame;





FIG. 20

is a top view of the connection of

FIG. 19

;





FIG. 21

is an enlarged side view, similar to

FIG. 19

, but showing the debris canister in a second position; and





FIG. 22

is a side view, similar to

FIGS. 19 and 21

, but illustrating the debris canister in a third position.











DESCRIPTION OF THE PREFERRED EMBODIMENT




The litter collection vehicle of the present invention includes a body


10


mounted on rear wheels


12


and front wheels


14


. The body may support a driver's seat


16


and there will be the typical controls for the driver to use in operating the vehicle. These may include foot pedals


18


and


20


and a steering wheel


22


, as well as other conventional devices found on vehicles of this type.




The vehicle includes both a pickup hose with supporting control elements and what is described as a pickup head. The hose is indicated at


24


and the pickup head is indicated at


26


. The hose may be supported by a counterbalance system indicated generally at


28


and, in the

FIG. 1

position, provides the vacuum to the pickup head


26


by being mounted thereon. The opposite end of hose


24


is connected to a cover


30


within which is housed a vacuum fan


32


indicated in dotted lines in FIG.


14


. Thus, suction will be applied to the end of the hose


24


connected to the vacuum fan, with the free end of the hose, when it is not mounted on the pickup head


26


, being used by the operator to pick up litter.




The hose counterbalance support system


28


is detailed in

FIGS. 2-4

and includes a U-shaped roll bar


34


, the upper end of which mounts a generally U-shaped bracket


36


. Bracket


36


pivotally mounts a rod


38


which in turn is attached to one end of a rear support arm


40


. The support arm will be seated on the upper flange


42


of bracket


36


and will pivotally move to either side relative to roll bar


34


by means of the pivotal connection comprising rod


38


and bracket


36


.




Rear support arm


40


carries a mounting bracket


44


which in turn mounts a hose support


46


which is one of several such hose supports used to hold the hose


24


up above the body


10


, as shown in FIG.


1


. Rear support arm


40


is pivotally connected, as at


48


, to a front support arm


50


which mounts a series, in this case three, hose supports


52


.




Pivotally mounted to rear support arm


40


, as at


56


, are a pair of spaced gas springs


54


. Each of the springs


54


has a forwardly extending piston rod


58


, with the two springs being pivotally mounted to opposite sides


60


of an intermediate lever


62


illustrated in side view in FIG.


2


and in bottom view in FIG.


4


. As shown in

FIGS. 2 and 4

, the leftwardly-extending portions of the sides


60


will pivotally mount the two gas spring piston rods


58


. It will be understood that the gas springs could alternatively be installed with their piston rods and cylinders in opposite locations. Lever


62


is pivotally mounted, as at


64


, to the forward support arm


50


and its forward extensions


66


pivotally mount a pin


68


which threadedly mounts a screw


70


, as particularly shown in FIG.


3


. The screw


70


has a handle


72


which rotates the screw. The upper end of the screw is mounted loosely in a pin


74


by a pair of lock nuts


76


, with the pin


74


being rotatably or pivotally mounted within the interior of the forward support arm


50


. Rotation of the handle


72


has the effect of raising and lowering the pivotal connection of the front end of lever


62


relative to the support arm


50


, which in turn lowers or raises the pivotal connection between the gas springs and the rear end of lever


62


. The raised and lowered positions of the lever


62


are illustrated in

FIG. 2

, with the raised position being in solid lines and the lowered position being in broken lines. Changing the height of the connection between the gas springs and lever


62


varies the effective moment arm through which the springs are pushing so they exert more or less lifting force on the front support arm


50


. This has the effect of floating the hose pickup nozzle higher above or closer to the ground. Gas springs require less operator manipulative force for hose movement than prior art leaf springs.




The support arms


50


and


40


, as their names imply, support the hose


24


in the position of

FIG. 1

so that the operator may manipulate the hose, as described hereinafter. The height of the pickup end of the hose above the surface being cleaned is controlled by the handle


72


, easily accessible to the operator while in the seat


16


, again as shown in FIG.


1


.




Movement of the hose


24


is controlled by a telescopic arm assembly


80


, shown in

FIG. 1

, and illustrated in detail in

FIGS. 5-10

. It is comprised of upper tube


82


, sleeve


100


, handle


106


and fork


104


. Focusing first on the upper mounting for the arm assembly, the top of the arm assembly


80


, an upper tube


82


, is pivotally mounted for movement about a horizontal axis on a pin


84


extending through opposite sides of a bracket


86


. The bracket


86


is pivotally bolted to an anchor bracket


88


, which in turn is bolted to the rear support arm


40


by bolts


90


, particularly shown in. FIG.


5


. The bolts


90


also secure hose supports


92


which extend upwardly and outwardly from opposite sides of the rear support arm


40


. The anchor bracket


88


may be mounted to extend to either the left side or the right side of the hose support, depending upon the preference of the machine operator or depending upon whether more debris will be picked up on the left or right side of the machine. This provides an advantage to the operator in terms of the ease of use of the hose for picking up litter. As clearly shown in

FIG. 6

, the upper end


82


of the telescopic support rod is pivoted about a horizontal axis, as shown by arrows


94


, and is pivotal about a vertical axis, as shown by arrows


96


. Thus, the control for the operator to manipulate the hose is essentially universally movable about its upper support assembly.




The telescopic arm assembly


80


includes the upper tube


82


, the end of which is mounted as described. The tube


82


extends within a sleeve


100


, shown in

FIG. 7

, with these elements being telescopically movable to vary the length of the support assembly. At the lower end of assembly


80


there is a stub shaft


102


which also extends into and is pinned to the sleeve


100


at


98


, with the stub shaft


102


being connected to and forming part of a fork


104


, which is indirectly connected to and carries the lower end of the hose


24


.




The handle for use by the operator in manipulating the hose is indicated generally at


106


and will be located along sleeve


100


by two collet-type clamp collars indicated at


108


and


110


located at opposite ends of the handle


106


. The handle


106


may be moved along sleeve


100


by loosening, moving and then tightening the collars


108


and


110


. The handle


106


includes a tubular portion


112


and three separate hand gripping areas which are all joined together. There is a vertical hand gripping area


114


and left and right hand gripping areas


116


and


118


. The hand gripping areas are tubular, as indicated by the cross section of FIG.


9


. The operator may grip either the left side, the right side or the vertical portion of the handle which provides both ease in controlling movement of the hose and substantially lessens fatigue on the part of the operator by allowing use of either hand and shifting of the hand to different positions when manipulating the hose.




Of particular advantage in the handle shown and described herein is that it fits loosely over the telescopic tube assembly


80


and swivels freely relative thereto. Thus, when the operator holds the handle to move the hose around, it always stays aligned with the operator's body or arm, regardless of how the tube is swung about.




The fork


104


which forms the lower connection point for the telescopic tube assembly


80


is pivotally connected to a ring


120


as particularly shown in

FIGS. 7 and 10

. There are stub pivot shafts


122


attached to and extending outwardly from the ring with the fork


104


being pivotally attached thereto.




The ring


120


loosely surrounds a pickup nozzle


124


, as shown in the partial section of

FIG. 7

, with the nozzle


124


extending inside of the hose


24


as at


126


. A hose clamp


128


secures the lower end of hose


24


to the upper end


126


of the nozzle, again as particularly shown in FIG.


7


. Ring


120


is loosely retained between a shoulder


127


formed in nozzle


124


and a flanged collar


129


fitted inside the end of hose


124


. This type of pivotal connection between the hose and its control eliminates twisting of the hose, which has considerable torsional stiffness, and thus allows the operator to manipulate or control the hose with substantially less fatigue than prior art devices of a similar type. The nozzle


124


has a guard ring


111


spaced from its open end by mounting brackets


113


, which provides an air gap


115


. The air gap


115


allows the operator to drag the hose along a surface to be cleaned without vacuum causing it to stick to the ground. The ring


111


also dislodges flattened-out wet debris.





FIGS. 11

,


12


and


13


illustrate the mounting of the pickup head


26


on the front axle


131


. Brackets


130


are mounted to the top


132


of the pickup head and rearwardly extending arms


134


are pivotally mounted to each of the brackets


130


. The arms


134


, as particularly shown in

FIGS. 11 and 12

, are pivotally attached to a support assembly


136


which includes a pair of torsion springs


138


mounted on bolts


140


to permit yielding movement of the pickup head


26


. The assembly


136


includes an upwardly extending flange


142


which will be attached by bolts


144


to the axle


131


of the front wheels


14


. Thus, the pickup head


26


may be responsive to contact with large debris in that it has up, down and twisting yielding movement due to the presence of the torsion springs


138


.




At one side of the top


132


of the pickup head


26


there is a stub tube


133


which will support the hose


24


on top of the pickup head as illustrated in FIG.


1


. In this position, the hose is not used as an independent litter pickup device, but rather provides the suction to the pickup head so that it may sweep a wide area for litter. The pickup head has a peripheral skirt, as is customary, with the skirt comprising an upper retainer


135


and a depending flexible for example rubber skirt


137


. The skirt


137


is peripheral, but has an opening on the left side, that being the side away from the stub tube


133


, with the opening being indicated at


139


. The skirt is also open across the front of the machine, as at


141


, so that it may pass over debris to be sucked up by the pickup head. The advantage in having the opening


139


at the side of the pickup head opposite the point of suction, that being the stub tube


133


, is that the air flow will be completely across the front of the pickup head which may be either


40


″ or as much as


48


″ in width. By drawing air across the full width of the pickup head a high air velocity is obtained, and the debris which is accessible at the front of the pickup head will be moved across its width into the stub tube


133


, through the hose and into the debris containers. This provides a more efficient pattern for movement of picked up debris and litter. Also, by positioning the vacuum connection to one side of the pickup head, the area of maximum suction power may be located along a curb or fence where debris is more heavily concentrated.




The pickup head can be raised or lowered depending upon whether it is to be used as the means for picking up litter or whether it is to be unused and litter is to be picked up by the hose


24


. A pair of cables


146


, as shown in

FIG. 13

, are attached to the top


132


of the pickup head


126


with brackets


147


, with the cables each extending around a pulley


148


and being dead-ended in a bracket


150


. The pulleys


148


may be raised and lowered, which moves the pickup head away from or toward the surface to be cleaned. Each pulley is mounted on a pivotal arm


152


with the arms being connected by a lost motion link


154


. The two arms


152


are connected together by a spring


156


and there is an actuating lever


158


which is connected to the left arm


152


and to link


154


and has, at its lower end, a spring


160


which is fixed to the vehicle frame. The upper end of actuating lever


158


is connected by a cable


162


to an actuator


164


shown in FIG.


11


. The actuator is mounted on the vehicle frame and will either pull in or let out the cable


162


, which will have the end result of raising or lowering the pulleys


148


, which in turn raises or lowers the pickup head. The movement of the lever


158


is illustrated in

FIG. 13

by the arrows


166


with such movement being effective to raise or lower the pulleys through the combination of the arms


152


, the springs


160


and


156


, the lost motion link


154


and a stop


168


, the position of which is controlled by a manual control knob


170


. By using this knob, the operator may control the height above the ground to which the pickup head can be raised or lowered. The actual raising and lowering of the pickup head is done by the actuator


164


which also will be controlled by the operator from one of the dashboard mounted controls.





FIGS. 14 through 22

illustrate the trash containers, the cover over them, the vacuum system and the mechanism which permits variable tilting of the trash containers for convenient disposal of the collected debris by the machine operator. In

FIG. 14

, the vacuum fan is illustrated generally at


32


and is located within the cover


30


and the vacuum fan is driven by a motor


172


. Air is exhausted to atmosphere through an outlet


173


. The hose inlet for the cover


30


where suction hose


24


connects is shown at


174


and there is a further inlet


176


which will be used with a wand pickup, the wand being illustrated generally at


178


in FIG.


1


. The wand will be used when the machine operator dismounts and moves to pick up debris from an area that is not accessible while riding on or driving the machine.




The hose inlet


174


will direct debris into a plenum which is defmed within the cover in the area


180


and located directly above a debris canister


182


. The debris canister


182


, shown in

FIG. 17

, will contain two side-by-side debris containers, such as plastic. bags, which will be maintained in an open position for collection of debris by identical rigid inserts


184


and


186


shown in FIG.


17


. The inserts, which may have open bottoms, will be placed inside of the plastic bags or other suitable debris containers and then the plastic bags will be placed side-by-side within the debris canister


182


. The debris containers may each be on the order of 50 gals. in volume and will be seated side-by-side within the debris canister so that both will be filled as debris is sucked up by either the hose


24


or the vacuum head


26


or the wand


178


. Thus, the present invention provides essentially double the normal capacity of prior art machines of this type.




In order to insure that the debris containers are relatively evenly filled, there is a deflector plate


188


, shown in

FIGS. 15 and 16

, which is mounted longitudinally in the lateral center and near the top of the debris canister and which has deflecting flanges


190


which will cause the debris which is sucked in generally centrally of the debris canister to be directed to both of the debris containers. The plate


188


extends longitudinally completely across the top of the debris canister so that it will deflect the incoming litter laterally into the two plastic bags.




The cover


30


is attached by a hinge


192


to a hinge mount


194


which permits the cover to be raised up, as shown by dotted line


30


A, so that the debris canister may be pivoted rearwardly as indicated by the two dotted line positions


208


and


210


in FIG.


14


. The hinge mount .


194


is fixed on the top of a post


196


and there is a gas spring


198


mounted to the hinge


192


and to the post


196


with the gas spring balancing the cover


30


and the vacuum fan when the cover is lifted. There is a cable


200


which is fastened to the debris canister at


202


, as shown in FIG.


14


and to the post


196


at its opposite end, which cable will limit the pivotal movement of the debris canister as it is moved between the closed position of FIG.


14


and the lower broken line tilted position


210


of this same figure. The canister pivotal mounting is indicated at


204


and the canister will rest upon a front mount


206


when it is in the closed position shown in FIG.


14


.




The debris canister may be moved first to a partially open position as shown by the broken lines indicated at


208


in FIG.


14


and fmally to a full open position shown by the broken lines


210


in FIG.


14


. In the first position, the trash bags may be tied at the top and at the second position the trash bags may be removed. The second position


210


provides for removal of the trash bags with less vertical lifting than if they were in the position


208


, which assists the operator and provides trash removal with much less effort.





FIGS. 18 through 22

illustrate the mechanism for controlling movement of the debris canister through the various positions described above. The bottom of the canister has a stop


208


bolted thereto with the stop having a stiffening gusset


210


. A portion of the vehicle frame is indicated at


212


and the pivot


204


will be attached to this portion of the frame. The frame mounts a bracket


214


which carries two forward flanges


216


pivotally mounting a block


218


. Bracket


214


also has a floor


215


which serves as a motion stop for block


218


, as shown in

FIGS. 19 and 21

. The block


218


has a forwardly curved nose


220


connected by two springs


222


to the bracket


214


. The springs


222


urge the block to rotate in a counter clockwise direction about its pivot point


223


.





FIG. 19

illustrates the closed position of the debris container with the block


218


being held firmly against bracket floor


215


by springs


222


.

FIG. 21

illustrates the position


208


of the debris canister. The debris canister has been moved rearwardly about its pivot


204


until the curved area


224


of the block


218


has encircled a stop pin


226


carried near the bottom of stop


208


. The debris canister will be held in this position because the springs


222


hold the block in the described position against bracket floor


215


.




When it is desired to move the debris canister to the fully tilted position illustrated at


210


, a back and down movement by the machine operator on the debris canister is effective to push the block


218


up, fully releasing the debris canister from the

FIG. 21

position and permitting its full movement to the

FIG. 22

position. It is held in this position by the cable


200


and can move no further. Springs


222


go over center and hold block


218


against bracket


214


. When it is desired to move the debris hopper back to its upright position, pin


210


will rotate downward about pivot


204


, and will strike the tail end


219


of block


218


, causing it to rotate back to the position of FIG.


19


.




Thus, the debris canister has several advantages. It has double the normal litter capacity since it has side-by-side litter containers, each of which may be about 50 gals. in capacity. Further, it has more than one open position facilitating removal of the debris containers once the bags have been tied at their tops and permitting such removal without strain on the operator's back. Rather than lifting the bags directly up, they may be removed by sliding them rearwardly.




Whereas the preferred form of the invention has been shown and described herein, it should be realized that there may be many modifications, substitutions and alterations thereto.



Claims
  • 1. A vacuum trash collection vehicle comprising a debris container on a vehicle, a source of vacuum on the vehicle, a hose connected at one end to the debris container and having the source of vacuum applied thereto, said hose being open at its other end to form a collection nozzle, a boom for supporting said hose during use as a debris collection device,a vacuum pickup head carried by said vehicle, means for raising and lowering said vacuum pickup head away from and toward a surface to be cleaned, an opening in said vacuum pickup head of a size and shape to be connected to said collection nozzle, driver accessible control means for moving said hose and boom to utilize said collection nozzle as the debris collection device, the connection of said collection nozzle to said pickup head opening providing vacuum to said pickup head whereby said pickup head functions as a debris collection device.
  • 2. The vacuum trash collection vehicle of claim 1 including a driver's seat and controls for the driver on the vehicle for operating it, said hose and boom extending above the driver's seat.
  • 3. The vacuum trash collection vehicle of claim 1 wherein said pickup head extends laterally across the front of the vehicle, said pickup head opening being on an upper portion of said pickup head and generally adjacent one end thereof.
  • 4. The vacuum trash collection vehicle of claim 3 wherein said opening in the pickup head is in the form of a short tube extending upwardly from said pickup head, with said short tube and collection nozzle forming a vacuum-tight connection therebetween.
  • 5. The vacuum trash collection vehicle of claim 3 wherein said pickup head has a peripheral skirt extending thereabout, an opening in the peripheral skirt opposite the end of the pickup head having the opening, whereby air flow from outside of said pickup head extends laterally across said pickup head as it flows from the opening in the peripheral skirt, toward the opening in the upper portion of the pickup head.
  • 6. The vacuum trash collection vehicle of claim 1 including power means on said vehicle, controllable by a driver, for operating said means for raising and lowering said pickup head.
  • 7. The vacuum trash collection vehicle of claim 1 wherein said driver accessible control means for moving said hose and boom includes an elongated telescopic control assembly, said control assembly having a handle thereon for use by said driver.
  • 8. The vacuum trash collection vehicle of claim 1 further comprising driver accessible pickup head control means for actuating said means for raising and lowering said vacuum pickup head away from and toward a surface to be cleaned.
  • 9. The vacuum trash collection vehicle of claim 1 wherein said opening in the pickup head is in the form of a short tube extending upwardly from said pickup head, with said short tube and collection nozzle forming a vacuum-tight connection therebetween.
  • 10. The vacuum trash collection vehicle of claim 1 further characterized in that the collection nozzle is connectable to and detachable from said opening in said vacuum pickup head by manipulation of the driver accessible control means.
  • 11. A vacuum trash collection vehicle comprising a debris container on a vehicle, a source of vacuum on the vehicle, a hose connected at one end to the debris container and having the source of vacuum applied thereto said hose being open at its other end to form a collection nozzle, a boom for supporting said hose during use as a debris collection device,a vacuum pickup head carried by said vehicle, an opening in said vacuum pickup head of a size and shape to be connected to said collection nozzle, driver accessible control means for moving said hose and boom to utilize said collection nozzle as the debris collection device, the collection nozzle being connectable to and detachable from said opening in said vacuum pickup head by manipulation of the driver accessible control means, the connection of said collection nozzle to said pickup head opening providing vacuum to said pickup head whereby said pickup head functions as a debris collection device.
  • 12. The vacuum trash collection vehicle of claim 11 including a driver's seat and controls for the driver on the vehicle for operating it, said hose and supporting boom extending above the driver's seat.
  • 13. The vacuum trash collection vehicle of claim 11 wherein said pickup head extends laterally across the front of the vehicle, said pickup head opening being on an upper portion of said pickup head and generally adjacent one end thereof.
  • 14. The vacuum trash collection vehicle of claim 13 wherein said opening in the pickup head is in the form of a short tube extending upwardly from said pickup head, with said short tube and nozzle forming a vacuum-tight connection therebetween.
  • 15. The vacuum trash collection vehicle of claim 13 wherein said pickup head has a peripheral skirt extending thereabout, an opening in the pickup head skirt opposite the end of the pickup head having the opening, whereby air flow from outside of said pickup head extends laterally across said pickup head as it flows from the opening in the peripheral skirt, toward the opening in an upper portion of the pickup head.
  • 16. The vacuum trash collection vehicle of claim 11 further comprising means for raising and lowering said vacuum pickup head away from and toward a surface to be cleaned.
  • 17. The vacuum trash collection vehicle of claim 16 including power means on said vehicle, controllable by a driver, for operating said means for raising and lowering said pickup head.
  • 18. The vacuum trash collection vehicle of claim 11 wherein said driver accessible control means for moving said hose and boom includes an elongated telescopic control assembly, said control assembly having a handle thereon for use by said operator.
  • 19. A vacuum trash collection vehicle comprising a debris container on a vehicle, a source of vacuum on the vehicle, a hose connected at one end to the debris container and having the source of vacuum applied thereto, said hose being open at its other end to form a collection nozzle, a boom for supporting said hose during use as a debris collection device,a vacuum pickup head carried by said vehicle and extending laterally across the front of the vehicle, an opening in said vacuum pickup head of a size and shape to be connected to said collection nozzle, said pickup head opening being on an upper portion of said pickup head and generally adjacent one end thereof, driver accessible control means for moving said hose and boom to utilize said collection nozzle as the debris collection device, the connection of said collection nozzle to said pickup head opening providing vacuum to said pickup head whereby said pickup head functions as a debris collection device.
  • 20. The vacuum trash collection vehicle of claim 19 further characterized in that the collection nozzle is connectable to and detachable from said opening in said vacuum pickup head by manipulation of the driver accessible control means.
  • 21. The vacuum trash collection vehicle of claim 19 including a driver's seat and controls for the driver on the vehicle for operating it, said hose and supporting boom extending above the driver's seat.
  • 22. The vacuum trash collection vehicle of claim 19 wherein said opening in the pickup head is in the form of a short tube extending upwardly from said pickup head, with said short tube and nozzle forming a vacuum-tight connection therebetween.
  • 23. The vacuum trash collection vehicle of claim 22 wherein said pickup head has a peripheral skirt extending thereabout, an opening in the pickup head skirt opposite the end of the pickup head having the opening, whereby air flow from outside of said pickup head extends laterally across said pickup head as it flows from the opening in the peripheral skirt, toward the opening in an upper portion of the pickup head.
  • 24. The vacuum trash collection vehicle of claim 19 further comprising means for raising and lowering said vacuum pickup head away from and toward a surface to be cleaned.
  • 25. The vacuum trash collection vehicle of claim 24 including power means on said vehicle, controllable by a driver, for operating said means for raising and lowering said pickup head.
  • 26. The vacuum trash collection vehicle of claim 19 wherein said driver accessible control means for moving said hose and boom includes an elongated telescopic control assembly, said control assembly having a handle thereon for use bv said operator.
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