CA1238070A - Spreader and dump truck - Google Patents
Spreader and dump truckInfo
- Publication number
- CA1238070A CA1238070A CA000483854A CA483854A CA1238070A CA 1238070 A CA1238070 A CA 1238070A CA 000483854 A CA000483854 A CA 000483854A CA 483854 A CA483854 A CA 483854A CA 1238070 A CA1238070 A CA 1238070A
- Authority
- CA
- Canada
- Prior art keywords
- frame
- sub
- conveyor
- dump
- side wall
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/28—Tipping body constructions
- B60P1/283—Elements of tipping devices
- B60P1/286—Loading buckets
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/2005—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders without driven loosening, discharging or spreading
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
- E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
- E01C19/203—Centrifugal spreaders with substantially vertical axis
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C2019/2055—Details not otherwise provided for
- E01C2019/207—Feeding the distribution means
- E01C2019/2075—Feeding the distribution means with longitudinal conveyor belt
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C2019/2055—Details not otherwise provided for
- E01C2019/207—Feeding the distribution means
- E01C2019/2095—Feeding the distribution means by tipping
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Abstract of the Disclosure A spreader and dump truck for spreading salt, including a dump box adapted to be tilted rearwardly for rear dumping, and including a first sub-frame mounting a longitudinal conveyor adjacent a fixed wall and within the confines of the dump box, a second sub-frame including a bottom floor portion and a side wall adapted to pivot along an axis parallel to the conveyor and adjacent thereof, the first sub-frame including front and rear pillars along the side edges thereof, the second sub-frame including a side wall adapted to nest between the front and rear pillars of the side frame of the first sub-frame. Piston and cylinder arrangements are provided for pivotally moving the second sub-frame and tilt it relative to the conveyor.
Description
~3~
The present invention relates to dump truck vehicles, and more particularly, to a dump truck which is adapted as a spreader.
Spreader/dump truck vehicles are well kn~wn in the art. Such vehicles are adapted espec:ially for -the purpose of spreading road salt on winter roads as well as conventional dump truck purposes, such as transporting sand and other granular materials.
Most such spreader/dump trucks are of the type whereby the dump body is tiltable fore and aft of the truck chassis, in combination with a conveyor which extends laterally thereof for feeding road salt to a rotary disc type spreader situated below the chassis. It has been found that a dump body which tilts fore and aft can seriously shift the center of gravity of the load and -thus of the vehicle rendering the driving of the vehicle hazardous during a spreading mode~
It has been suggested to have a side dump truck with a conveyor extendlng longitudinally of the body. Such a construction is illustrated in U. S. Patent 3,010,727, Swenson et al, 1961, wherein a longitudinal conveyor is provided on the side of the truck frame and the whole dump box tilts about a longitudinal axis adjacent the conveyor, However, such an arrangement presents a problem of shifting the center of gravity laterally relative to the direction of travel of the truck which can also present a driving hazard.
It is an aim of the present invention to provide a salt/sand spreader and dump truck utilizing a side dump ~ f ; 30 principle while minimizing the shifting of the center of gravityO
It is also an aim of the present invention to provide a salt~sand spreader and dump truck construction which has a side dump box section in combination with a longitudinal conveyor integral with the dump box and wherein the dump box can also be utilized in a rear dump mode.
A construction in accordance with the present invention comprises a spreader and dump truck comprising a vehicle, a longitudinal axis in the direction of travel and having a chassis with a rear portion, a first dump box frame pivotally mounted about a lateral axis on the rear portion of the chassis. The first dump box frame includes a first sub-frame having longitudinal side frame members, and a front bul~head having a side pillar on either side thereof mounted on the side frame members. A pair of side pillars are provided on the side frame members at the rear of the first sub-frame. A pivoting dump gate is mounted to the upper portions of the rear side pillars. A conveyor is provided on the first sub-frame e~tendiny longitudinally thereof for delivering granular material of the dump box.
A second sub-frame is provided at least on one side of the conveyor and has a hin~e axis parallel and adjacent the conveyor. The second sub-frame includes a side frame member co-extensive with a side ~rame member of the first sub-frame when the second sub-frame is in a lowered position. A side wall is provided on the side frame member of the second sub-frame adapted to fit between the side pillar of the bulkhead and the rear pillar on the side frame member of the first sub-frame and within a plane including the pillars.
Means are provided for pivoting the second sub-frame away from the first su~-frame about the hinge axis.
In a more specific embodiment, the conveyor is located adjacent one side of the dump box, while the second ~3~
sub-~rame is hinged to the first sub-frame along an axis adjacent the conveyor on the other side of the conveyor. The second sub~frame includes a floor covering, and the first sub-frame includes a side wall extending between the side pillar of the bulkhead and the rear pillar on the one side of the dump truck adjacent the conveyor.
By having a pivoting second sub-frame hinged longi-tudinally within the confines of the ~irst sub-frame and adjacent a conveyor provided on the first sub-frame, only a portion o~ the dump box pivots upwardly, thereby maintaining the center of gravity in the vicinity of the longitudinal axis of the vehicle as compared to a side dump truc~ wherein the longitudinal conveyor is outboard of the dump box, and the whole of the dump box is made to pivot along an axis at a side ed~e thereo~.
Further, by having the second sub-frame and the first sub-frame complementin~ the structure of the side wall, i.e., with the side wall portion mounted to the second sub~
frame and the front and rear pillars mounted to the first sub-frame, considerable weight saving is obtained as compared with a previous attempt whereby the second sub-frame includes a s~de wall and the first sub-frame includes a side wall in order that the structural integrity of the dump box including the first sub-frame be maintained.
In the event that the dump box is to be used as a conventional rear dump truck, a cover is provided over the conveyor to provide a smooth bottom wall surface.
An optional screen device may be provided hinged to the side walls. ~ link forming a quadrilateral with one of the screen sides is provided on the fi~ed side wall so that when the second sub-frame is pivoted with its side wall, the articulated screens and link will Eold accordingly.
~ ~3~
Having thus generally described the nature of the invention, reference will now be made to the accompanying drawings, showing by way of illustration, a preferred ~mbodi-ment thereof, and in which:
Figure 1 is a perspective view of a dump box of the present invention;
Figure 2 is a side elevation thereof, Figure 3 is a vertical cross-section taken along line 3~3 of Figure 2;
Figure 4 is a fragmentary enlarged vertical cross-section taken along li.ne 4-4 of Figure 2, Figure 5 is a fragmentary top plan view of the dump box provided with the optional screen; and Figure 6 is a vertical cross-section taken along line 6-6 of Figure 5.
Referring now to the drawings and particularly to Figures 1, 2 and 3, there is shown a dump box 10 adapted to be mounted on a vehicle chassis 12 of a typical -truck type vehicle. Although the dump box 10 looks and can operate as a conventional rear dump box, ~t, in fact, serves two purposes - one as a conventional dump box and the second as : a salt/ssnd spreader dump box.
The construction of the dump box 10 includes a first sub-frame 16 mounted to a rear hinge 14 on the truck chsssis 12. The sub-frame 16, as best shown in Figures 2 and 3, includes side frame members 20 and 22 which, in this cass/ are in the form of box beams. Longitudinal I-beams 24 and 26 extend the length of the first sub-frame 16, and a plurality of laterally extending box beam members 28 complete the structure of the fir.st sub-frame 16~ The lateral beams 28 are welcled to -the side frame 22 and to the I-beams 24 ~3~3~7~
and 26~
A front bulkhead 30 is mounted to the first sub-frame 16 and includes side pillars 32 and 34 mounted respectively to side frame members 20 ~nd 22~ Rear pillars 36 and 38 are also mounted to side frame members 20 and 22 and are adapted to hang a dump gate 40 at dump gate hinge brackets 42 and 44. A side wall 46 extends between the pillars 32 and 36 and is welded therewith. The upper por~
tions of the pillars 32 and 36 are provided with channels 48 and 50 respectively for the purpose of receiving wooden planks, thereby effectively raising the height of the side wall 46, if necessary. A conveyor 5~, as shown in Figure 3, is mounted within the frame structure of the sub-frame 16 so that the upper run of the conveyor belt is slightly below the bottom surface of the dump box. A cover plate 54, which pivots along an axis adjacent the conveyor 52 between the side wall 46 and the edge of the conveyor, is provided for covering the conveyor when the dump box is utilized in its rear dump mode for carrying gravel, etc.
The second sub-frame 18 includes a side frame member 62 and a plurality of laterally extending channel beam members 56 which are welded to the side beam member 62 but offset therefrom so that the channel members, when the second sub-frame 18 is in its lowered position, lie in the eame plane as the beam members 28. A cover plate 60 is welded to the channel beam members 56 and to the side frame members 62. The second sub-frame 18 is hinged to a hinge shaft 58 which extends parallel to and adjacent the conveyor 52, as shown in Figure 3.
A side wall 64 is mounted on the second sub-frame 18 in a plane containing the side ~rame member 62. The side wall is such as to mate with the rear pillar 38 and the ~23~
front pillar 36. For instance, a flange 65 is provided on the rear portion of the wall 64, and a chaImel member 66 extends upwardly from the flange 65, and with the channel 68 at the front of the wall 64, is adapted to receive wooden planks for extending the height of the side wall 64. The flange 65 has a horizontal extension 67 with a locate pin 69.
Locate pin 69 is adapted to be received in a suit-able female seat on the top of the pillar 38 when the second frame member is in its lower position. Similarly, a locate pin 71 is provided on the front part of the wall 64 and adapted to be received in the pillar 36~ Various locate pins 75 may be provided on the side frame members 62 adapted to be received in apertures provided in the side frame member 22 which is co-extensive therewith when the second sub-frame 18 is in its lower position.
front plate 70 is welded to the cover 60 and the eide wall channel 68 and includes a rubber seal 72. The plate 70 slides against the bulkhead 30, and with the rubber seal 72, pre~ents granular material from being lodged between the front plate 70 and the bulkhead 30 and acts as a wiper therefor.
As shown in Figures 3 and 4, a piston and cylinder arrangement 73 is provided on a bracket mounted on the I-beam 26 at one end and i5 pi w tally connected to the side frame member 62 at the other end. Three such piston and cylinder arrangements can be provided between the first sub-frame 16 as represented-by the I-beam 26 and the second sub-frame 18 as represented by the side frame member 62.
When it is required to use the dump box in a salt spreading mode, the cover 54 is pivoted away from the ; conveyor 52, thus exposiny the top run of the conveyo:r belt, and salt is fed into the dump box 10 with the second sub-frame ~2~38~
18 in its lower position.
As it is required to move the salt onto the conveyor as the load is reduced, the second sub-frame 18 is gradually pivoted upwardly by operating the piston and cylinder arrangement 73. Thus, as seen in Figure 3, the salt/sand will be shifted onto the conveyor 52 for feeding onto a circular salt/sand feeder (not shown).
An optional screen device can be provided on the dump box as shown in Figures S and 6. The screen device must be articulatea so that it will fold properly when the second sub-frame 18 is tilted upwardly from the first sub-frame 16. As shown in Figure 6, the screens 74 are hinged to a central floating beam 76 and are hinged at each side to the fixed side wall 46 and the side wall portion 64 of the second sub-frame 18, by means of pivot hinges 82 and 84 respectively. The screens 74 are hinged to the beam 76 along hinge pins 78 and 80 respectively.
A link member 8Ç is pivotally connected to the beam 76 at 90 and to the side wall 46 at 88. The link 86 and the screens 74 and beam 76 and the side wall 46 forrn a quadrilateral, such that as the second sub-fr~ne 18 is pivoted upwardly, the screens will be forced to fold as shown in Figure 6 in dotted lines.
The screens are utilized for screening the salt ~ when it is being~loaded into the dump box 10.
:~.
:
The present invention relates to dump truck vehicles, and more particularly, to a dump truck which is adapted as a spreader.
Spreader/dump truck vehicles are well kn~wn in the art. Such vehicles are adapted espec:ially for -the purpose of spreading road salt on winter roads as well as conventional dump truck purposes, such as transporting sand and other granular materials.
Most such spreader/dump trucks are of the type whereby the dump body is tiltable fore and aft of the truck chassis, in combination with a conveyor which extends laterally thereof for feeding road salt to a rotary disc type spreader situated below the chassis. It has been found that a dump body which tilts fore and aft can seriously shift the center of gravity of the load and -thus of the vehicle rendering the driving of the vehicle hazardous during a spreading mode~
It has been suggested to have a side dump truck with a conveyor extendlng longitudinally of the body. Such a construction is illustrated in U. S. Patent 3,010,727, Swenson et al, 1961, wherein a longitudinal conveyor is provided on the side of the truck frame and the whole dump box tilts about a longitudinal axis adjacent the conveyor, However, such an arrangement presents a problem of shifting the center of gravity laterally relative to the direction of travel of the truck which can also present a driving hazard.
It is an aim of the present invention to provide a salt/sand spreader and dump truck utilizing a side dump ~ f ; 30 principle while minimizing the shifting of the center of gravityO
It is also an aim of the present invention to provide a salt~sand spreader and dump truck construction which has a side dump box section in combination with a longitudinal conveyor integral with the dump box and wherein the dump box can also be utilized in a rear dump mode.
A construction in accordance with the present invention comprises a spreader and dump truck comprising a vehicle, a longitudinal axis in the direction of travel and having a chassis with a rear portion, a first dump box frame pivotally mounted about a lateral axis on the rear portion of the chassis. The first dump box frame includes a first sub-frame having longitudinal side frame members, and a front bul~head having a side pillar on either side thereof mounted on the side frame members. A pair of side pillars are provided on the side frame members at the rear of the first sub-frame. A pivoting dump gate is mounted to the upper portions of the rear side pillars. A conveyor is provided on the first sub-frame e~tendiny longitudinally thereof for delivering granular material of the dump box.
A second sub-frame is provided at least on one side of the conveyor and has a hin~e axis parallel and adjacent the conveyor. The second sub-frame includes a side frame member co-extensive with a side ~rame member of the first sub-frame when the second sub-frame is in a lowered position. A side wall is provided on the side frame member of the second sub-frame adapted to fit between the side pillar of the bulkhead and the rear pillar on the side frame member of the first sub-frame and within a plane including the pillars.
Means are provided for pivoting the second sub-frame away from the first su~-frame about the hinge axis.
In a more specific embodiment, the conveyor is located adjacent one side of the dump box, while the second ~3~
sub-~rame is hinged to the first sub-frame along an axis adjacent the conveyor on the other side of the conveyor. The second sub~frame includes a floor covering, and the first sub-frame includes a side wall extending between the side pillar of the bulkhead and the rear pillar on the one side of the dump truck adjacent the conveyor.
By having a pivoting second sub-frame hinged longi-tudinally within the confines of the ~irst sub-frame and adjacent a conveyor provided on the first sub-frame, only a portion o~ the dump box pivots upwardly, thereby maintaining the center of gravity in the vicinity of the longitudinal axis of the vehicle as compared to a side dump truc~ wherein the longitudinal conveyor is outboard of the dump box, and the whole of the dump box is made to pivot along an axis at a side ed~e thereo~.
Further, by having the second sub-frame and the first sub-frame complementin~ the structure of the side wall, i.e., with the side wall portion mounted to the second sub~
frame and the front and rear pillars mounted to the first sub-frame, considerable weight saving is obtained as compared with a previous attempt whereby the second sub-frame includes a s~de wall and the first sub-frame includes a side wall in order that the structural integrity of the dump box including the first sub-frame be maintained.
In the event that the dump box is to be used as a conventional rear dump truck, a cover is provided over the conveyor to provide a smooth bottom wall surface.
An optional screen device may be provided hinged to the side walls. ~ link forming a quadrilateral with one of the screen sides is provided on the fi~ed side wall so that when the second sub-frame is pivoted with its side wall, the articulated screens and link will Eold accordingly.
~ ~3~
Having thus generally described the nature of the invention, reference will now be made to the accompanying drawings, showing by way of illustration, a preferred ~mbodi-ment thereof, and in which:
Figure 1 is a perspective view of a dump box of the present invention;
Figure 2 is a side elevation thereof, Figure 3 is a vertical cross-section taken along line 3~3 of Figure 2;
Figure 4 is a fragmentary enlarged vertical cross-section taken along li.ne 4-4 of Figure 2, Figure 5 is a fragmentary top plan view of the dump box provided with the optional screen; and Figure 6 is a vertical cross-section taken along line 6-6 of Figure 5.
Referring now to the drawings and particularly to Figures 1, 2 and 3, there is shown a dump box 10 adapted to be mounted on a vehicle chassis 12 of a typical -truck type vehicle. Although the dump box 10 looks and can operate as a conventional rear dump box, ~t, in fact, serves two purposes - one as a conventional dump box and the second as : a salt/ssnd spreader dump box.
The construction of the dump box 10 includes a first sub-frame 16 mounted to a rear hinge 14 on the truck chsssis 12. The sub-frame 16, as best shown in Figures 2 and 3, includes side frame members 20 and 22 which, in this cass/ are in the form of box beams. Longitudinal I-beams 24 and 26 extend the length of the first sub-frame 16, and a plurality of laterally extending box beam members 28 complete the structure of the fir.st sub-frame 16~ The lateral beams 28 are welcled to -the side frame 22 and to the I-beams 24 ~3~3~7~
and 26~
A front bulkhead 30 is mounted to the first sub-frame 16 and includes side pillars 32 and 34 mounted respectively to side frame members 20 ~nd 22~ Rear pillars 36 and 38 are also mounted to side frame members 20 and 22 and are adapted to hang a dump gate 40 at dump gate hinge brackets 42 and 44. A side wall 46 extends between the pillars 32 and 36 and is welded therewith. The upper por~
tions of the pillars 32 and 36 are provided with channels 48 and 50 respectively for the purpose of receiving wooden planks, thereby effectively raising the height of the side wall 46, if necessary. A conveyor 5~, as shown in Figure 3, is mounted within the frame structure of the sub-frame 16 so that the upper run of the conveyor belt is slightly below the bottom surface of the dump box. A cover plate 54, which pivots along an axis adjacent the conveyor 52 between the side wall 46 and the edge of the conveyor, is provided for covering the conveyor when the dump box is utilized in its rear dump mode for carrying gravel, etc.
The second sub-frame 18 includes a side frame member 62 and a plurality of laterally extending channel beam members 56 which are welded to the side beam member 62 but offset therefrom so that the channel members, when the second sub-frame 18 is in its lowered position, lie in the eame plane as the beam members 28. A cover plate 60 is welded to the channel beam members 56 and to the side frame members 62. The second sub-frame 18 is hinged to a hinge shaft 58 which extends parallel to and adjacent the conveyor 52, as shown in Figure 3.
A side wall 64 is mounted on the second sub-frame 18 in a plane containing the side ~rame member 62. The side wall is such as to mate with the rear pillar 38 and the ~23~
front pillar 36. For instance, a flange 65 is provided on the rear portion of the wall 64, and a chaImel member 66 extends upwardly from the flange 65, and with the channel 68 at the front of the wall 64, is adapted to receive wooden planks for extending the height of the side wall 64. The flange 65 has a horizontal extension 67 with a locate pin 69.
Locate pin 69 is adapted to be received in a suit-able female seat on the top of the pillar 38 when the second frame member is in its lower position. Similarly, a locate pin 71 is provided on the front part of the wall 64 and adapted to be received in the pillar 36~ Various locate pins 75 may be provided on the side frame members 62 adapted to be received in apertures provided in the side frame member 22 which is co-extensive therewith when the second sub-frame 18 is in its lower position.
front plate 70 is welded to the cover 60 and the eide wall channel 68 and includes a rubber seal 72. The plate 70 slides against the bulkhead 30, and with the rubber seal 72, pre~ents granular material from being lodged between the front plate 70 and the bulkhead 30 and acts as a wiper therefor.
As shown in Figures 3 and 4, a piston and cylinder arrangement 73 is provided on a bracket mounted on the I-beam 26 at one end and i5 pi w tally connected to the side frame member 62 at the other end. Three such piston and cylinder arrangements can be provided between the first sub-frame 16 as represented-by the I-beam 26 and the second sub-frame 18 as represented by the side frame member 62.
When it is required to use the dump box in a salt spreading mode, the cover 54 is pivoted away from the ; conveyor 52, thus exposiny the top run of the conveyo:r belt, and salt is fed into the dump box 10 with the second sub-frame ~2~38~
18 in its lower position.
As it is required to move the salt onto the conveyor as the load is reduced, the second sub-frame 18 is gradually pivoted upwardly by operating the piston and cylinder arrangement 73. Thus, as seen in Figure 3, the salt/sand will be shifted onto the conveyor 52 for feeding onto a circular salt/sand feeder (not shown).
An optional screen device can be provided on the dump box as shown in Figures S and 6. The screen device must be articulatea so that it will fold properly when the second sub-frame 18 is tilted upwardly from the first sub-frame 16. As shown in Figure 6, the screens 74 are hinged to a central floating beam 76 and are hinged at each side to the fixed side wall 46 and the side wall portion 64 of the second sub-frame 18, by means of pivot hinges 82 and 84 respectively. The screens 74 are hinged to the beam 76 along hinge pins 78 and 80 respectively.
A link member 8Ç is pivotally connected to the beam 76 at 90 and to the side wall 46 at 88. The link 86 and the screens 74 and beam 76 and the side wall 46 forrn a quadrilateral, such that as the second sub-fr~ne 18 is pivoted upwardly, the screens will be forced to fold as shown in Figure 6 in dotted lines.
The screens are utilized for screening the salt ~ when it is being~loaded into the dump box 10.
:~.
:
Claims (3)
1. A spreader and dump truck comprising a dump box adapted to be mounted on a vehicle having a longitudinal axis in the direction of travel and having a chassis with a rear portion, a dump box frame pivotally mounted about a lateral axis on the rear portion of the chassis, the dump box frame including a first sub-frame having longitudinal side frame members and a front bulkhead having a side pillar on either side thereof mounted on the side frame members, a pair of side pillars provided on the side frame members at the rear of the first sub-frame, a pivoting dump gate mounted to the upper portions of the rear side pillars, a conveyor extending longitudinally and mounted integrally with the first sub-frame for delivering granular material of the dump box, a second sub-frame provided at least on one side of the conveyor and having a hinge axis parallel and adjacent the conveyor, the second sub-frame including a side frame member co-extensive with the side frame member of the first sub-frame when said second sub-frame is in a lowered position, a side wall provided on the side frame member of the second sub-frame adapted to fit between the side pillar of the bulkhead and the rear pillar on the side frame member of the first sub-frame and within a plane including the pillars, and means for pivoting the second sub-frame away from the first sub-frame about the hinge axis.
2. A spreader and dump truck as defined in claim 1, wherein the conveyor is mounted adjacent a first side frame member of the first sub-frame, and a fixed side wall is provided between the pillars on said first side frame member, the second sub-frame being hingedly mounted on the other side of the conveyor and including a cover plate exten-ding over the second sub-frame, the second sub-frame including lateral beam members adapted to be interposed between lateral beam members of the first sub-frame when the second sub-frame is in its lower position, and a piston and cylinder arrange-ment provided between the first sub-frame and the second sub-frame for pivoting the second sub-frame relative to the first sub-frame.
3. A spreader and dump truck as defined in claim 2, wherein screens are provided on the dump box, the screens having at least a first and second panel with the first panel hingedly mounted to the top of the fixed side wall and articulated to a longitudinal beam floating between said screen panels, the second screen panel articulated to the side wall of the second sub-frame and hingedly connected to the floating beam, the combined width of the screens being greater than the distance between the fixed side wall and the side wall of the second sub-frame, and a quadrilateral link member articulated to the fixed side wall and to the floating beam to allow the screens to fold when the second sub-frame is pivoted upwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000483854A CA1238070A (en) | 1985-06-13 | 1985-06-13 | Spreader and dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000483854A CA1238070A (en) | 1985-06-13 | 1985-06-13 | Spreader and dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1238070A true CA1238070A (en) | 1988-06-14 |
Family
ID=4130696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000483854A Expired CA1238070A (en) | 1985-06-13 | 1985-06-13 | Spreader and dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1238070A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170947A (en) * | 1991-05-03 | 1992-12-15 | Tenco Machinery Ltd. | Salt and sand spreader kit |
| WO2013046271A1 (en) * | 2011-09-29 | 2013-04-04 | Hitachi Construction Machinery Co., Ltd. | Body structure for dump truck |
| ITPD20120072A1 (en) * | 2012-03-09 | 2013-09-10 | Ormet S P A | MOBILE BETONING UNIT, FOR THE REALIZATION OF SUBSTRATES, SCREEDS AND DOUGH FOR GENERAL BUILDING |
-
1985
- 1985-06-13 CA CA000483854A patent/CA1238070A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170947A (en) * | 1991-05-03 | 1992-12-15 | Tenco Machinery Ltd. | Salt and sand spreader kit |
| WO2013046271A1 (en) * | 2011-09-29 | 2013-04-04 | Hitachi Construction Machinery Co., Ltd. | Body structure for dump truck |
| AU2011378342B2 (en) * | 2011-09-29 | 2015-11-26 | Hitachi Construction Machinery Co., Ltd. | Body structure for dump truck |
| US9266457B2 (en) | 2011-09-29 | 2016-02-23 | Hitachi Construction Machinery Co., Ltd. | Body structure for dump truck |
| ITPD20120072A1 (en) * | 2012-03-09 | 2013-09-10 | Ormet S P A | MOBILE BETONING UNIT, FOR THE REALIZATION OF SUBSTRATES, SCREEDS AND DOUGH FOR GENERAL BUILDING |
| EP2636499A1 (en) * | 2012-03-09 | 2013-09-11 | Ormet S.p.A. | Mobile concrete mixing unit for providing screeds, floor foundations and mixes for the building sector in general |
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Legal Events
| Date | Code | Title | Description |
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| MKEX | Expiry |