CA1100901A - Transportable, collapsible vehicle loading hopper - Google Patents
Transportable, collapsible vehicle loading hopperInfo
- Publication number
- CA1100901A CA1100901A CA333,084A CA333084A CA1100901A CA 1100901 A CA1100901 A CA 1100901A CA 333084 A CA333084 A CA 333084A CA 1100901 A CA1100901 A CA 1100901A
- Authority
- CA
- Canada
- Prior art keywords
- bin
- mix
- loading hopper
- vehicle
- frame
- 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
Abstract
TITLE
TRANSPORTABLE, COLLAPSIBLE VEHICLE LOADING HOPPER
ABSTRACT OF THE DISCLOSURE
A loading bin is carried on a wheel-supported trans-portable frame in a collapsed condition in which the upper filling end of the loading bin is below vertical height road clearances for highways. The bin can be elevated at the con-struction site so that its lower discharge end is above the height of the vehicles being loaded. The bin is filled by a cart traveling along a track from ground to an elevation above the bin with the track being deployed automatically upon rais-ing of the bin. The cart automatically dumps its load into the bin upon reaching the filling end of the bin.
TRANSPORTABLE, COLLAPSIBLE VEHICLE LOADING HOPPER
ABSTRACT OF THE DISCLOSURE
A loading bin is carried on a wheel-supported trans-portable frame in a collapsed condition in which the upper filling end of the loading bin is below vertical height road clearances for highways. The bin can be elevated at the con-struction site so that its lower discharge end is above the height of the vehicles being loaded. The bin is filled by a cart traveling along a track from ground to an elevation above the bin with the track being deployed automatically upon rais-ing of the bin. The cart automatically dumps its load into the bin upon reaching the filling end of the bin.
Description
9~1 BAC GROUND OF THE INVENTION
E~ield of the Invention This invention pertains to portable truck loading apparatus, and more particularly to transportable, collapsible loading hoppers adapted for loading asphalt or other product at the source or at the construction site.
Description of th _Prior Art Mobile asphalt plants such as described in U.S.
Patent No. 3,905,587 are known. In the patented device the asphalt plant as well as a truck loading hopper are trailed to ti.e construction site and erected such that vehicles can drive beneath the hopper and be filled with the asphalt which is manufactured right at the site.
One of the difficulties, however, with prior port-able truck loading hoppers, in particular~ is that they have re~uired considerable manpower and time to erect and dismantle at the construction site. For example, patent No. 3,905,587 discloses the use of a bucket conveyor for lifting the asphalt - from the mixing plant and depositing it in the inlet end of the hopper. This conveyor requires considerable effort to be dismantled and carried during transporting of the hopper to and from the construction site. In addition, the asphalt be-ing by nature sticky and abrasive causes considerable mainten-ance difficulties in continued operation of the bucket convey-or.
S~MMARY OF THE INVENTION
It is an object of this invention to provide an im-proved transportable, collapsible vehic]e loading hopper for filling vehicles with sticky, abrasive material such as as-phalt.
~.
9~
It is another object of this invention ~o provide aneasily and quickly erected transportable vehicle loading hop-per.
Basically, these objects are obtained by providing a transpor~able frame carried on ~round supporting wheels and mounting on the frame a vertically extendible loading bin hav-ing an upper or filling end that can be carried below vertical road clearances on the highways and a lower discharge end which can be elevated higher than the vehicles requiring load-ing. The hin is uniquely kept filled by a cart which rides ona track extending from the ground level to an elevation above the inlet end of the bin. The track is pivotally mounted to the transportable frame and is erected to its deployed posi-tion automatically by the raising of the bin. Additional seg-ments of the track necessary to extend it to ground level are easily and quickly assembledO The bin is elevated and the cart reciprocated by self-contained mechanisms carried on the transportable frame.
As is readily apparent~ the transpo~table, collap-sible vehicle loading hopper can be carried long distances toa construction site and once located can be quickly put into full operation. The use of a cart carried on an elevated track for loading the bin provides the advantage of quick and easy collapsibility of the conveying system as ~ell as ease of maintenance and increased filling capacity over prior art buc~et conveyors.
BRIEF DES~RIPTION OF THE FIGURES OF THE DRAWING
Fig. 1 is a perspective of a transporta~le, collaps-ible vehicle loading hopper embodying the principles of the invention shown in the raised position.
Fig. 2 is a side elevation of the hopper in Fig.
9~.
1 shown in a "travel" position.
Fig. 3 is ~ fragmentary schematic showin~ the means for reciprocating the cart used in the hopper of Fig. 1.
Fig. 4 is a fragmentary end elevation of the vehicle loading bin employed in the hopper of Fig. l.
Fig. 5 is a fragmentary plan of the bin shown in Fig. 4.
Fig. 6 is a fragmentary vertical section of the bin shown in Fig. 5.
Fig. 7 is an isometric of the bin filling cart shown in Fig. l.
Fig. 8 is a fragmentary side elevation of a portion of the track overlying the bin inlet and illustrating the automatic dumping aspect of the cart.
Fig. 9 is a fragmentary detail showing a pivotal coupling of the track employed in the hopper of Fig. l.
Fig. 10 is a fragmentary side elevation of a portion of the track employed in the hopper of Fig. l.
Fig. ll is a section taken along the line ll-ll of Fig. 10 illustrating an extendible position of the lower end of the track.
DETAILED DESCRIPTION OF T~E PREFERRED EMBODIMENTS
As best shown in Fig. l the transportable, collaps-ible vehicle loading hopper employs a transportable rame 10 carried by ground engaging wheels 12 (Fig. 2) and a forward end 14 adapted to be carried by a tractor or other vehicle 15.
The frame is provided with telescopic supports or posts 16 which at the construction site are lowered to level the hopper and to remove the load from the wheels. Thus at the construc-tion site the transportable frame is held in a stable station-ary position by the posts 16.
1~09~1 The hopper includes a vehicle loading bin 13 having a filling end 17 (Fig. 1) and a discharge end 18 (Fig. 2).
The discharge end is closed by clam shell gates 20 which are opened by pneumatic or hydraulic actuators 22. The gates op-erate in synchronism through meshing gears 23.
The bin is raised and lowered by sets of chains on either end of the bin which are dead ended to the bottom of the bin as at 26 (Fig. 4) and pass over sprockets 27 which are rotatably mounted on the Erame 10 with the opposite ends of the chains being dead ended on the frame member 10 as at 28.
The dead end connections 28 are removed when raising the bin to allow free fall of the chains. When the bin is at the "upl' or raised position the dead end connections 28 are re-in-stalled as safety stops to prevent the chain and thus the bin from moving should the drive fail. Each of the sets of chains is powered by a common motor 30 which drives gear reduction units 32 to rotate both sets of sprockets 27. Rotation of the sprockets causes the chain to be raised thus lifting the bin - from below until it reaches the elevated position shown in Fig. 1. Lowering of the bin occurs by the reverse rotation of the sprockets 27 until the bin is in the lowered position in Fig. 2.
As best shown in Fig. 6 the inlet or filling end 17 of the bin 13 is provided with opposite pivotal side plates or panels 29 each pivotally mounted to the bin as at 33. The side plates are joined by an end plate 29a with the free ends of the plates suspended into the bin in the collapsed position as shown in solid lines in Fig. 6 by cables 34. The cables run over sheaves 37 at the top of the bin and through sleeves ; 30 35 fixed to the frame 10. The end of each cable is provided with a spring 36. As the bin is elevat2d the spring ends of 09~
the cables are raised by the cable until each spring engages the sleeve 35. Further upward movement of the bin then draws the cable 34 at the free end oE the plates 29 and 29a upward-ly relative to the bin so that as the bin reaches the fully ex-tended position in Fig. 1 the plates are in the raised posi-tion illustrated in phantom in Fig. 6. The plates prevent spillage from the cart when loading through the inlet end of the bin.
The hopper is provided with a filling cart 38 ~Fig.
1) which travels on an elongated track 40. The track has a semi-stationary portion 40a, a pivotal upper section 40b and a removable lower section 40c. As best shown in Fig. 2 the pivotal section is lowered by the bin into the position where the combined vertical height of the wheel-carried frame and cart does not exceed the vertical height clearance allowed on ~.
highways~ However, in the elevated position the track is in a straight line between the ground and overlying the inlet end of the bin as shown in Fig. 1.
The track 40 has its stationary section 40a perma-nently fixed to the frame 10. As best shown in Fig. 9 theupper section of the track 40b is pivotally connected at its lower end on a pivot post 50 fastened to a bracket 51 that is secured to frame 10. The section 40b is lifted by the bin into the inc].ined position in abutment with the stationary secti~.n 40a. Once in place bolts are placed through holes 52 to sec.~Le the upper section 40b. The no~.inal height of the lowered bin is 14 feet.
The lower section 49c is best illustrated in Figs.
10 and 11. This section is uniquely pivotally carried by a slidable pivot 60 that is secured to the outer end of a car-riage 62. The carriage 62 rides in a track 64 so that it can be extended either into the position shown in Fig. 10 or by disconnecting bolts 66 the track can be swung clockwise about the pivot 60 to a horizontal position and then pushed to the right as shown in phantom lines in Fig. 10 into a stored position. The stored position is also shown in Fig. 2. In this manner a single operator can quickly roll the ]ower sec-tion 40c outwardly, swing it into position and bolt it to the stationary track 40a.
The cart is moved along the track by a pair of ele-vating cables 68 which travel about spring loaded sheaves 69that are attached to the frame 10 and thence about drums 70.
Similarly, the cart is pulled back down the track by a single cable 72 that is wrapped around a drum 74 ~Fig. 3). A motor 76 powers the drum so that the cables are let out and returned simultaneously. The cart is provided with an automatic dump gate 77 that is provided with actuating rollers 78 along its forward edge (Figs. 7 and 8). Positioned on the track over-lying the inlet end of the bin 13 is a stop mechanism 80. The stop mechanism 80 is provided with a shock absorbing spring 82. A switch actuator is provided to stop the motor 76 a predetermined distance after the rollers 78 engage the stop mechanism 80. Thus the cart continues a short distance fur-ther but the rollers 78 are stopped causing the gate 77 to swing clockwise into an open position automatically dumping the contents of the cart into the bin. When the cart is emptied it automatically reverses to be refilled.
In operation, the transportable, collapsible hopper is trailed to the construction site and the frame positioned ~ on its telescopic posts. The bin is then raised and the track bolted in place. The asphalt plant then discharges asphalt into the cart which can make several trips up and down the track to maintain the bin filled while trucks pass beneath the bin and are filled. When the operation is completed the track is unbolted and the sections returned to their storage posi-tion as the bin is lowered. The hopper is then transported to its new location to begin operation again.
While the preferred embodiments of the invention have been illustrated and described it should be understood that variations will be apparent to one skilled in the art without departing from the principles herein~ ~ccordingly, the invention is not to be limited to the specific embodiment shown in the drawings.
E~ield of the Invention This invention pertains to portable truck loading apparatus, and more particularly to transportable, collapsible loading hoppers adapted for loading asphalt or other product at the source or at the construction site.
Description of th _Prior Art Mobile asphalt plants such as described in U.S.
Patent No. 3,905,587 are known. In the patented device the asphalt plant as well as a truck loading hopper are trailed to ti.e construction site and erected such that vehicles can drive beneath the hopper and be filled with the asphalt which is manufactured right at the site.
One of the difficulties, however, with prior port-able truck loading hoppers, in particular~ is that they have re~uired considerable manpower and time to erect and dismantle at the construction site. For example, patent No. 3,905,587 discloses the use of a bucket conveyor for lifting the asphalt - from the mixing plant and depositing it in the inlet end of the hopper. This conveyor requires considerable effort to be dismantled and carried during transporting of the hopper to and from the construction site. In addition, the asphalt be-ing by nature sticky and abrasive causes considerable mainten-ance difficulties in continued operation of the bucket convey-or.
S~MMARY OF THE INVENTION
It is an object of this invention to provide an im-proved transportable, collapsible vehic]e loading hopper for filling vehicles with sticky, abrasive material such as as-phalt.
~.
9~
It is another object of this invention ~o provide aneasily and quickly erected transportable vehicle loading hop-per.
Basically, these objects are obtained by providing a transpor~able frame carried on ~round supporting wheels and mounting on the frame a vertically extendible loading bin hav-ing an upper or filling end that can be carried below vertical road clearances on the highways and a lower discharge end which can be elevated higher than the vehicles requiring load-ing. The hin is uniquely kept filled by a cart which rides ona track extending from the ground level to an elevation above the inlet end of the bin. The track is pivotally mounted to the transportable frame and is erected to its deployed posi-tion automatically by the raising of the bin. Additional seg-ments of the track necessary to extend it to ground level are easily and quickly assembledO The bin is elevated and the cart reciprocated by self-contained mechanisms carried on the transportable frame.
As is readily apparent~ the transpo~table, collap-sible vehicle loading hopper can be carried long distances toa construction site and once located can be quickly put into full operation. The use of a cart carried on an elevated track for loading the bin provides the advantage of quick and easy collapsibility of the conveying system as ~ell as ease of maintenance and increased filling capacity over prior art buc~et conveyors.
BRIEF DES~RIPTION OF THE FIGURES OF THE DRAWING
Fig. 1 is a perspective of a transporta~le, collaps-ible vehicle loading hopper embodying the principles of the invention shown in the raised position.
Fig. 2 is a side elevation of the hopper in Fig.
9~.
1 shown in a "travel" position.
Fig. 3 is ~ fragmentary schematic showin~ the means for reciprocating the cart used in the hopper of Fig. 1.
Fig. 4 is a fragmentary end elevation of the vehicle loading bin employed in the hopper of Fig. l.
Fig. 5 is a fragmentary plan of the bin shown in Fig. 4.
Fig. 6 is a fragmentary vertical section of the bin shown in Fig. 5.
Fig. 7 is an isometric of the bin filling cart shown in Fig. l.
Fig. 8 is a fragmentary side elevation of a portion of the track overlying the bin inlet and illustrating the automatic dumping aspect of the cart.
Fig. 9 is a fragmentary detail showing a pivotal coupling of the track employed in the hopper of Fig. l.
Fig. 10 is a fragmentary side elevation of a portion of the track employed in the hopper of Fig. l.
Fig. ll is a section taken along the line ll-ll of Fig. 10 illustrating an extendible position of the lower end of the track.
DETAILED DESCRIPTION OF T~E PREFERRED EMBODIMENTS
As best shown in Fig. l the transportable, collaps-ible vehicle loading hopper employs a transportable rame 10 carried by ground engaging wheels 12 (Fig. 2) and a forward end 14 adapted to be carried by a tractor or other vehicle 15.
The frame is provided with telescopic supports or posts 16 which at the construction site are lowered to level the hopper and to remove the load from the wheels. Thus at the construc-tion site the transportable frame is held in a stable station-ary position by the posts 16.
1~09~1 The hopper includes a vehicle loading bin 13 having a filling end 17 (Fig. 1) and a discharge end 18 (Fig. 2).
The discharge end is closed by clam shell gates 20 which are opened by pneumatic or hydraulic actuators 22. The gates op-erate in synchronism through meshing gears 23.
The bin is raised and lowered by sets of chains on either end of the bin which are dead ended to the bottom of the bin as at 26 (Fig. 4) and pass over sprockets 27 which are rotatably mounted on the Erame 10 with the opposite ends of the chains being dead ended on the frame member 10 as at 28.
The dead end connections 28 are removed when raising the bin to allow free fall of the chains. When the bin is at the "upl' or raised position the dead end connections 28 are re-in-stalled as safety stops to prevent the chain and thus the bin from moving should the drive fail. Each of the sets of chains is powered by a common motor 30 which drives gear reduction units 32 to rotate both sets of sprockets 27. Rotation of the sprockets causes the chain to be raised thus lifting the bin - from below until it reaches the elevated position shown in Fig. 1. Lowering of the bin occurs by the reverse rotation of the sprockets 27 until the bin is in the lowered position in Fig. 2.
As best shown in Fig. 6 the inlet or filling end 17 of the bin 13 is provided with opposite pivotal side plates or panels 29 each pivotally mounted to the bin as at 33. The side plates are joined by an end plate 29a with the free ends of the plates suspended into the bin in the collapsed position as shown in solid lines in Fig. 6 by cables 34. The cables run over sheaves 37 at the top of the bin and through sleeves ; 30 35 fixed to the frame 10. The end of each cable is provided with a spring 36. As the bin is elevat2d the spring ends of 09~
the cables are raised by the cable until each spring engages the sleeve 35. Further upward movement of the bin then draws the cable 34 at the free end oE the plates 29 and 29a upward-ly relative to the bin so that as the bin reaches the fully ex-tended position in Fig. 1 the plates are in the raised posi-tion illustrated in phantom in Fig. 6. The plates prevent spillage from the cart when loading through the inlet end of the bin.
The hopper is provided with a filling cart 38 ~Fig.
1) which travels on an elongated track 40. The track has a semi-stationary portion 40a, a pivotal upper section 40b and a removable lower section 40c. As best shown in Fig. 2 the pivotal section is lowered by the bin into the position where the combined vertical height of the wheel-carried frame and cart does not exceed the vertical height clearance allowed on ~.
highways~ However, in the elevated position the track is in a straight line between the ground and overlying the inlet end of the bin as shown in Fig. 1.
The track 40 has its stationary section 40a perma-nently fixed to the frame 10. As best shown in Fig. 9 theupper section of the track 40b is pivotally connected at its lower end on a pivot post 50 fastened to a bracket 51 that is secured to frame 10. The section 40b is lifted by the bin into the inc].ined position in abutment with the stationary secti~.n 40a. Once in place bolts are placed through holes 52 to sec.~Le the upper section 40b. The no~.inal height of the lowered bin is 14 feet.
The lower section 49c is best illustrated in Figs.
10 and 11. This section is uniquely pivotally carried by a slidable pivot 60 that is secured to the outer end of a car-riage 62. The carriage 62 rides in a track 64 so that it can be extended either into the position shown in Fig. 10 or by disconnecting bolts 66 the track can be swung clockwise about the pivot 60 to a horizontal position and then pushed to the right as shown in phantom lines in Fig. 10 into a stored position. The stored position is also shown in Fig. 2. In this manner a single operator can quickly roll the ]ower sec-tion 40c outwardly, swing it into position and bolt it to the stationary track 40a.
The cart is moved along the track by a pair of ele-vating cables 68 which travel about spring loaded sheaves 69that are attached to the frame 10 and thence about drums 70.
Similarly, the cart is pulled back down the track by a single cable 72 that is wrapped around a drum 74 ~Fig. 3). A motor 76 powers the drum so that the cables are let out and returned simultaneously. The cart is provided with an automatic dump gate 77 that is provided with actuating rollers 78 along its forward edge (Figs. 7 and 8). Positioned on the track over-lying the inlet end of the bin 13 is a stop mechanism 80. The stop mechanism 80 is provided with a shock absorbing spring 82. A switch actuator is provided to stop the motor 76 a predetermined distance after the rollers 78 engage the stop mechanism 80. Thus the cart continues a short distance fur-ther but the rollers 78 are stopped causing the gate 77 to swing clockwise into an open position automatically dumping the contents of the cart into the bin. When the cart is emptied it automatically reverses to be refilled.
In operation, the transportable, collapsible hopper is trailed to the construction site and the frame positioned ~ on its telescopic posts. The bin is then raised and the track bolted in place. The asphalt plant then discharges asphalt into the cart which can make several trips up and down the track to maintain the bin filled while trucks pass beneath the bin and are filled. When the operation is completed the track is unbolted and the sections returned to their storage posi-tion as the bin is lowered. The hopper is then transported to its new location to begin operation again.
While the preferred embodiments of the invention have been illustrated and described it should be understood that variations will be apparent to one skilled in the art without departing from the principles herein~ ~ccordingly, the invention is not to be limited to the specific embodiment shown in the drawings.
Claims (8)
1. A transportable, collapsible vehicle-loading hopper for filling trucks or the like with sticky substances, like asphaltic mix or other sticky mixed product, from a mix-ing device at a remote construction site, comprising:
a transportable frame supported on ground-engaging wheels, a vertically raisable, large-capacity, rectangular, one-piece holding bin having a truncated rectangular lower portion terminating in a large discharge end adapted to be above a vehicle when the bin is in a raised position and below the vertical height clearance normally encountered on highways when in a lowered transporting position and an upper filling end adapted to be below the vertical height clearance normally encountered on highways when in said lowered transporting po-sition, said rectangular bin, lower truncated rectangular dis-charge end including at least two separate, generally rectang-ular discharge openings, and a gate closing each said opening, thereby increasing the flow area out of the bin for minimum mix segregation without increasing the vertical height of the discharge end, said combined discharge openings having a large area, means for raising and lowering said bin within said frame so that the vertical axis of said bin remains parallel with the vertical axis of said frame, said bin being tele-scoped in a unitary, unmodified condition between said raised position and said lowered transporting position such that the height of said frame and bin is reduced in said transporting position without increasing the length or width of said frame and bin, mix delivery means extending from ground to above said bin when the bin is raised, said mix delivery means in-cluding means for transporting the mix from the mixing device to the upper filling end of the bin, and means for collapsing the delivery means into a posi-tion supported solely on said frame but below said vertical height clearance.
a transportable frame supported on ground-engaging wheels, a vertically raisable, large-capacity, rectangular, one-piece holding bin having a truncated rectangular lower portion terminating in a large discharge end adapted to be above a vehicle when the bin is in a raised position and below the vertical height clearance normally encountered on highways when in a lowered transporting position and an upper filling end adapted to be below the vertical height clearance normally encountered on highways when in said lowered transporting po-sition, said rectangular bin, lower truncated rectangular dis-charge end including at least two separate, generally rectang-ular discharge openings, and a gate closing each said opening, thereby increasing the flow area out of the bin for minimum mix segregation without increasing the vertical height of the discharge end, said combined discharge openings having a large area, means for raising and lowering said bin within said frame so that the vertical axis of said bin remains parallel with the vertical axis of said frame, said bin being tele-scoped in a unitary, unmodified condition between said raised position and said lowered transporting position such that the height of said frame and bin is reduced in said transporting position without increasing the length or width of said frame and bin, mix delivery means extending from ground to above said bin when the bin is raised, said mix delivery means in-cluding means for transporting the mix from the mixing device to the upper filling end of the bin, and means for collapsing the delivery means into a posi-tion supported solely on said frame but below said vertical height clearance.
2. The vehicle-loading hopper of claim 1, including means for supporting the mix delivery means on the bin for simultaneously raising said mix delivery means with the bin.
3. The vehicle-loading hopper of claim 21 including a track, said means for transporting the mix to the upper filling end of the bin being a cart movable on the track and having a dump end, and cart-moving means including cable means for pulling the cart along the track and means for powering said cable means.
4. The vehicle-loading hopper of claim 3, including a stop on said track overlying the bin-filling end, a gate for closing the dump end of the cart, and means on said gate en-gageable with said stop for opening the gate by movement of the cart past the stop.
5. The vehicle-loading hopper of claim 1, including opposite side plates extendibly mounted to the bin and an end plate joined to said side plates, means for raising said side and end plates into a raised portion when the bin is raised for providing a confined mix area above the bin upper filling end.
6. The vehicle-loading hopper of claim 5, said end plate supporting said mix delivery means directly above said bin-filling end when said plates are in said raised position.
7. The vehicle-loading hopper of claim 1, said means for raising and lowering said bin including a set of chains dead-ended at said lower discharge end of the bin and coupled to powered sprockets rotatably fastened to said frame at an elevated position whereby rotation of the sprockets will raise said bin into its extended position.
8. The vehicle-loading hopper of claim 7, including side shield members pivotally coupled to the bin and to cables engageable with said frame as the bin is raised whereby the cables pull the shield members into shielding, raised posi-tions above the upper filling end of the bin solely by raising the bin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US87310779A | 1979-01-30 | 1979-01-30 | |
| US873,107 | 1979-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1100901A true CA1100901A (en) | 1981-05-12 |
Family
ID=25360986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA333,084A Expired CA1100901A (en) | 1979-01-30 | 1979-08-02 | Transportable, collapsible vehicle loading hopper |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1100901A (en) |
-
1979
- 1979-08-02 CA CA333,084A patent/CA1100901A/en not_active Expired
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| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |