Information
-
Patent Grant
-
6389641
-
Patent Number
6,389,641
-
Date Filed
Monday, June 15, 199826 years ago
-
Date Issued
Tuesday, May 21, 200222 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Warden; Jill
- Snider; Theresa T.
Agents
- Klos; John F.
- Larkin, Hoffman, Daly & Lindgren, Ltd.
-
CPC
-
US Classifications
Field of Search
US
- 015 3401
- 015 354
- 015 361
- 015 329
- 015 331
- 015 334
- 015 335
-
International Classifications
-
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.
US Referenced Citations (21)
Foreign Referenced Citations (5)
Number |
Date |
Country |
2 424 426 |
Apr 1979 |
FR |
2 555 555 |
May 1985 |
FR |
2 605 907 |
May 1988 |
FR |
2 655 071 |
May 1991 |
FR |
2 667 086 |
Mar 1992 |
FR |