CA1186269A - Conveyor for bulk goods - Google Patents
Conveyor for bulk goodsInfo
- Publication number
- CA1186269A CA1186269A CA000417620A CA417620A CA1186269A CA 1186269 A CA1186269 A CA 1186269A CA 000417620 A CA000417620 A CA 000417620A CA 417620 A CA417620 A CA 417620A CA 1186269 A CA1186269 A CA 1186269A
- Authority
- CA
- Canada
- Prior art keywords
- floor
- flap
- chains
- flaps
- conveyor
- 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
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Abstract
CONVEYOR FOR BULK GOODS
ABSTRACT OF THE DISCLOSURE:
A conveyor for bulk goods of the endless-chain type including a bin having a longitudinal floor and upwardly extending and di-vergent sidewalls; at least two laterally spaced, sprocket mounted and driven, endless chains defining a working flight above the floor and a return flight below the floor; and a plurality of flexi-ble load supporting flaps, each of the flaps having a leading edge attached to the laterally spaced chains by separate brackets to permit flexing of the flap in case of obstruction and a free trailing edge operable to overlap the leading edge of an adjacent and rear-wardly spaced flap. Each of the flaps may also include a flexible scraper adjacent its leading edge operable to engage the upper sur-face of the floor for cleaning the floor.
ABSTRACT OF THE DISCLOSURE:
A conveyor for bulk goods of the endless-chain type including a bin having a longitudinal floor and upwardly extending and di-vergent sidewalls; at least two laterally spaced, sprocket mounted and driven, endless chains defining a working flight above the floor and a return flight below the floor; and a plurality of flexi-ble load supporting flaps, each of the flaps having a leading edge attached to the laterally spaced chains by separate brackets to permit flexing of the flap in case of obstruction and a free trailing edge operable to overlap the leading edge of an adjacent and rear-wardly spaced flap. Each of the flaps may also include a flexible scraper adjacent its leading edge operable to engage the upper sur-face of the floor for cleaning the floor.
Description
3;2 B~CI~GROUNI:) OF TIIE INVENTION
Field of the Inven-tion _ . _ _ _ _ , . _ . _ . _ This invention relates in general -to conveyors and in parti-cular to endless chain-type conveyors for the movement of bulk goods.
Descri tion of the Prior Art P._ ~
It is highly desirable in the conveying of bulk goods and bulk crops, in particular, that the conveyor have positive traction;
that the load bearing surface of the conveyor be flexible to minimize damage to the crops; and that the conveyor drive system remain free from obstruction. U.S. Patent No. 2,717,703 issued to W. Kull dis-closes a feeder conveyor which may be of the rope, belt, or chain type and which utilizes drums, sprockets, or wheels for guiding and driving the endless belt. Rull further suggests use of flexible material such as textile fabric for use in the construction of arti-culating flap members. I~ull does not suggest the manner in which the flaps might be combined with the chains when -the positive traction of the chains is preferred.
U.S. Patent No. 2,496,463 issued to R.C. Gaddis discloses a conveyor using chains and sprockets for positive traction and further discloses a series of transverse bars welded or otherwise secured to laterally spaced chains for moving material along a lower spaced longitudinal floor.
U.S. Patent No. 4,055,265 issued to L.J. Eisenman discloses a series of transverse bars secured between laterally spaced chains and a series of overlapping flexible flaps attached to the bars for supporting material placed thereon. In the Eisenman invention the overlying load causes the flaps to pull directly against the trans-verse bars to which they are attached resulting in the flap tearing away from the attaching rivets.
Current problems in the art, to which the present inven-tion is addressed and which are not solved by the prior art include the "down-time" caused by damage to the rigid cross bars, and to the
Field of the Inven-tion _ . _ _ _ _ , . _ . _ . _ This invention relates in general -to conveyors and in parti-cular to endless chain-type conveyors for the movement of bulk goods.
Descri tion of the Prior Art P._ ~
It is highly desirable in the conveying of bulk goods and bulk crops, in particular, that the conveyor have positive traction;
that the load bearing surface of the conveyor be flexible to minimize damage to the crops; and that the conveyor drive system remain free from obstruction. U.S. Patent No. 2,717,703 issued to W. Kull dis-closes a feeder conveyor which may be of the rope, belt, or chain type and which utilizes drums, sprockets, or wheels for guiding and driving the endless belt. Rull further suggests use of flexible material such as textile fabric for use in the construction of arti-culating flap members. I~ull does not suggest the manner in which the flaps might be combined with the chains when -the positive traction of the chains is preferred.
U.S. Patent No. 2,496,463 issued to R.C. Gaddis discloses a conveyor using chains and sprockets for positive traction and further discloses a series of transverse bars welded or otherwise secured to laterally spaced chains for moving material along a lower spaced longitudinal floor.
U.S. Patent No. 4,055,265 issued to L.J. Eisenman discloses a series of transverse bars secured between laterally spaced chains and a series of overlapping flexible flaps attached to the bars for supporting material placed thereon. In the Eisenman invention the overlying load causes the flaps to pull directly against the trans-verse bars to which they are attached resulting in the flap tearing away from the attaching rivets.
Current problems in the art, to which the present inven-tion is addressed and which are not solved by the prior art include the "down-time" caused by damage to the rigid cross bars, and to the
-2-chains to which the rigid cross bars are fixed by obs-tructive materials such as rocks and stones which aLe inadvertently included with the bulk materials; the "down-time" caused by the teariny of flaps; the prevention of "build~up" material on the conveyor floor;
the low dispensing rate of fine grains because of the rolling action of overlying grains relative to the conveyor belt; and the down-time due to lost flaps.
SUMMARY OF THE INVENTION
The present invention comprises, generally, a conveyor having a longitudinally extending floor and divergently upstanding walls supported on suitable framework; two or more sprocket driven chains defining an upper flight and a lower return flight relative to the floor and a plurality of flexible flap members separately fixed to each chain, each of said flap members including a flexible scraper adapted to ride upon and engage the top surface of the floor, under load, for scraping the floor of debris. A more precise definition of the invention may be found in the appended claims.
It is therefore an object of the present invention to provide an endless chain-type conveyor having flexible flaps provided with flexible scrapers for cleaning the floor surface of the conveyor.
More specifically it is an object of the present invention to provide scrapers which are fastened to flexible flaps forward of the flaps attachment to conveyor chains to that the flaps are pushed forwardly.
It is also an object of the present invention to provide a conveyor in which endless chains are independently connected to flexible load-bearing flaps to prevent conveyor damage due to obstruc-tive material.
It is a further object of the present invention to provide a conveyor having flexible load-bearing flaps providing pockets for movement of fine particles.
s~
Additional objects and advantacJes will become apparent and a more -thorough and comprehensive unders~anding may be had Erom the following descrip~ion talcen in conjunction with the accompanying drawings forming a part of tllis specifica-tion.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a conveyor made according to the present invention.
Fig. 2 is a close-up perspective view showing details of construction.
~ig. 3 is a sectional view taken along lines 3~-3 of Fig. 2.
Fig. 4 is a fragmentary side view showing chain engagement with a sprocket wheel.
Fig. 5 is a fragmentary view of the under surfa~e of the flexible flaps and chains of the invention.
Fig. 6 is a fragmentary plan view of the flaps showing under-lying attachment bars and flexible scrapers in outline.
DETAILED DESCRIPTION OF THF. INVENTIO~J
Referring now to the drawings a~d to Fig. 1 and 2, in particular, one embodiment of the conveyor of the present invention is shown to advanta~e. Conveyor 10 includes framework 5 supporting a floor 7 and side walls 8; a pair of endless chains 20 driven by sprocket wheels 30; a second set of sprocket wheels 40 serving as idlers; flexible load-bearing flaps 50; and drive means 60.
Framework 5 may be any suitable framework for supporting the conveyor and may be either fixed or portable. A vehicle chassis may readily serve as the framework.
A longitudinal, horizontally extending, floor 7 having a sub-stantially planar upper surface is mounted on the framework. A
pair of side walls 8 jo7n the floor adjacent its lateral edges.
Walls 8 preferably extend upward and divergently outward for funneling overlying material to the conveyor. Additional structural provisions such as a storage bln, end walls, end gates, and the like may of course be added but are not a par-t of the present invention.
Endless chains are provided to give positlve traction to the conveyor, as opposed to endless belts which are prone to slip.
While any number of such chains may be provided, depending upon the width of the conveyor, a pair of laterally spaced chains 20, as shown in the figures, will generally be preferred. The upper flight of each chain rests upon and moves along the upper surface of floor 7 and the lower flight is carried along below the floor and may be supported by longitudinally spaced U-shaped support trusses 6 as shown in Fig. 4. Such trusses are particularly useful ~or chains of long length to prevent excessive weight on the supporting sprocket wheelsO Trusses 6 are also useful for dislodging conveyed material which might otherwise stick to the f~aps carried by the chains. Each chain is engaged at one end of the floor by a drive sprocket wheel 30 which may be carried upon a common shaft and is engaged at the other end of the floor by idler means 40 in the form of a sprocket wheel. While the idler means is preferably in the form of a sprocket wheel, it will be understood that rollers, friction guides, and the like may also serve as idlers. Each structure is old in the art and a lengthy description is believed unnecessary.
A motor 60, engine, or like power source, drive sprockets 30 for moving conveyor chains 20.
Of prime importance in the present invention is the flexible load bearing flaps and their attachment to the chains. Flaps 50 may be constructed of any suitable jfabric, plastic, or rubber, or any combination thereof. Preferably the flaps are made of rubber-fiber composition which permits the flap to generally conform to the shape of the load and the flap supports underlying structures.
The flaps are substantially rectangular in form defining a leading edge and a trailing edge. The leading edge may be clipped or beveled backwardly at an angle of approximately 45, as shown to advantage t~
in Fig. 2, to reduce fric-tion between the edges oE the flap and sides ~. The leading edge is provided wi-th a downwardLy dependiny flexible scraper 55, having a thickness substantially equal to the endless chains to which each flap is attached. Scraper 55 extends the substantial width of the leading edge, having appropriate notches 52 for the chain, as is shown to advantage in Figs. 2 and 3. The scraper may be constructed of any suitable flexible material. Rubber has been found to work extremely well. The scraper may be attached to the under surface of each flap by vulcanization or other suitable fastening means. It is to be noted that the scraper is mounted for-wardly of attachment bar 25 so that the bar pushes against the scraper and therefore pushes the flap to which the scraper is attached.
Each chain is independently attached to each flap adjacent the leading edge of the flap by means of at least one attachment bar 25.
In this manner, it is to be noted, only flexible flap 50 and flexible scraper 55 extend between respective laterally spaced bars 25. The resiliency of members 50 and 55 permit individual chains and attached flaps to ride over minor obstructions such as rocks or stones which may work their way under the flap, scraper, or chains.
2Q Attachment bars 25 preferably include two flat laterally pro-jecting members which are welded to each side of a chain link. The bars include vertical apertures adapted to receive either bolts or rivets 22 for attachment of flaps 50. The flaps are attached to the chains in such a manner that the trailing edge of each flap overlaps a leading edge of a rearwardly located adjacent flap to present a continuous belt-like surface.
The operation of the conveyor will now be described using the unloading of fine grain, such as oats, from a truck, for example.
It is assumed that the conveyor is suitably attached to the under surface of the truck bin 9, as illustrated in Fig. 1. Motor 60 is activated to drive sprocket wheels 30 for pulling chains 20, in their engagement with floor 7 and idler sprockets 40, to the rear of the q~
conveyor. Flexible flaps 50, under the weight of the yraln, conform to the shape of the unclerlying structure--the floor 7, the chains 20, attachment bars 25, and scrapers 55---to form "pockets" in each flap. These moving pockets tend to prevent slippage between grain particles for improved eficiency of emptying of the bin. The weight of the grain also tends to seal the sides of flaps ~0 against side walls ~ to prevent accumulation of grain below the flaps. Be-cause of their greater density, rocks or stones which have been mixed with the grain during harvesting, tend to work to the bottom of the conveyor and will occasionally work under the flaps together with small amounts of grain. Any such debris is swept rearwardly by scraper 55 of each flap until ejected at the end of the conveyor.
It is to be particularly noted that rocks which may become lodged in or under chain links may cause the chain to rise above the plane of the floor upon which it rides. In that each chain is independent relative to a laterally spaced chain, for the reason that the chains are connected laterally only by flexible flaps and scrapers, the conveyor continues to function.
As each flap reaches the end of the conveyor, the trailing edge of the flap slips on the leading edge of the adjacent successive rearward flap thereby accommodating for the increased pitch diameter of the sprockets. The trailing edge of the flap is then flipped outwardly, tending to free the flap of attached grain particles.
Any grain which may adhere to the flap is likely to be discharged as the flap engages spaced trusses 6 on its return flight.
Having thus described in detail a preferred embodiment of the present invention, it is to be appreciated and will be apparent to those skilled in the art that many physical changes could be made in the apparatus without altering the inventive concepts and principles embodied therein. The present embodiments are therefore to be consi-dered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore to be embraced therein.
the low dispensing rate of fine grains because of the rolling action of overlying grains relative to the conveyor belt; and the down-time due to lost flaps.
SUMMARY OF THE INVENTION
The present invention comprises, generally, a conveyor having a longitudinally extending floor and divergently upstanding walls supported on suitable framework; two or more sprocket driven chains defining an upper flight and a lower return flight relative to the floor and a plurality of flexible flap members separately fixed to each chain, each of said flap members including a flexible scraper adapted to ride upon and engage the top surface of the floor, under load, for scraping the floor of debris. A more precise definition of the invention may be found in the appended claims.
It is therefore an object of the present invention to provide an endless chain-type conveyor having flexible flaps provided with flexible scrapers for cleaning the floor surface of the conveyor.
More specifically it is an object of the present invention to provide scrapers which are fastened to flexible flaps forward of the flaps attachment to conveyor chains to that the flaps are pushed forwardly.
It is also an object of the present invention to provide a conveyor in which endless chains are independently connected to flexible load-bearing flaps to prevent conveyor damage due to obstruc-tive material.
It is a further object of the present invention to provide a conveyor having flexible load-bearing flaps providing pockets for movement of fine particles.
s~
Additional objects and advantacJes will become apparent and a more -thorough and comprehensive unders~anding may be had Erom the following descrip~ion talcen in conjunction with the accompanying drawings forming a part of tllis specifica-tion.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a conveyor made according to the present invention.
Fig. 2 is a close-up perspective view showing details of construction.
~ig. 3 is a sectional view taken along lines 3~-3 of Fig. 2.
Fig. 4 is a fragmentary side view showing chain engagement with a sprocket wheel.
Fig. 5 is a fragmentary view of the under surfa~e of the flexible flaps and chains of the invention.
Fig. 6 is a fragmentary plan view of the flaps showing under-lying attachment bars and flexible scrapers in outline.
DETAILED DESCRIPTION OF THF. INVENTIO~J
Referring now to the drawings a~d to Fig. 1 and 2, in particular, one embodiment of the conveyor of the present invention is shown to advanta~e. Conveyor 10 includes framework 5 supporting a floor 7 and side walls 8; a pair of endless chains 20 driven by sprocket wheels 30; a second set of sprocket wheels 40 serving as idlers; flexible load-bearing flaps 50; and drive means 60.
Framework 5 may be any suitable framework for supporting the conveyor and may be either fixed or portable. A vehicle chassis may readily serve as the framework.
A longitudinal, horizontally extending, floor 7 having a sub-stantially planar upper surface is mounted on the framework. A
pair of side walls 8 jo7n the floor adjacent its lateral edges.
Walls 8 preferably extend upward and divergently outward for funneling overlying material to the conveyor. Additional structural provisions such as a storage bln, end walls, end gates, and the like may of course be added but are not a par-t of the present invention.
Endless chains are provided to give positlve traction to the conveyor, as opposed to endless belts which are prone to slip.
While any number of such chains may be provided, depending upon the width of the conveyor, a pair of laterally spaced chains 20, as shown in the figures, will generally be preferred. The upper flight of each chain rests upon and moves along the upper surface of floor 7 and the lower flight is carried along below the floor and may be supported by longitudinally spaced U-shaped support trusses 6 as shown in Fig. 4. Such trusses are particularly useful ~or chains of long length to prevent excessive weight on the supporting sprocket wheelsO Trusses 6 are also useful for dislodging conveyed material which might otherwise stick to the f~aps carried by the chains. Each chain is engaged at one end of the floor by a drive sprocket wheel 30 which may be carried upon a common shaft and is engaged at the other end of the floor by idler means 40 in the form of a sprocket wheel. While the idler means is preferably in the form of a sprocket wheel, it will be understood that rollers, friction guides, and the like may also serve as idlers. Each structure is old in the art and a lengthy description is believed unnecessary.
A motor 60, engine, or like power source, drive sprockets 30 for moving conveyor chains 20.
Of prime importance in the present invention is the flexible load bearing flaps and their attachment to the chains. Flaps 50 may be constructed of any suitable jfabric, plastic, or rubber, or any combination thereof. Preferably the flaps are made of rubber-fiber composition which permits the flap to generally conform to the shape of the load and the flap supports underlying structures.
The flaps are substantially rectangular in form defining a leading edge and a trailing edge. The leading edge may be clipped or beveled backwardly at an angle of approximately 45, as shown to advantage t~
in Fig. 2, to reduce fric-tion between the edges oE the flap and sides ~. The leading edge is provided wi-th a downwardLy dependiny flexible scraper 55, having a thickness substantially equal to the endless chains to which each flap is attached. Scraper 55 extends the substantial width of the leading edge, having appropriate notches 52 for the chain, as is shown to advantage in Figs. 2 and 3. The scraper may be constructed of any suitable flexible material. Rubber has been found to work extremely well. The scraper may be attached to the under surface of each flap by vulcanization or other suitable fastening means. It is to be noted that the scraper is mounted for-wardly of attachment bar 25 so that the bar pushes against the scraper and therefore pushes the flap to which the scraper is attached.
Each chain is independently attached to each flap adjacent the leading edge of the flap by means of at least one attachment bar 25.
In this manner, it is to be noted, only flexible flap 50 and flexible scraper 55 extend between respective laterally spaced bars 25. The resiliency of members 50 and 55 permit individual chains and attached flaps to ride over minor obstructions such as rocks or stones which may work their way under the flap, scraper, or chains.
2Q Attachment bars 25 preferably include two flat laterally pro-jecting members which are welded to each side of a chain link. The bars include vertical apertures adapted to receive either bolts or rivets 22 for attachment of flaps 50. The flaps are attached to the chains in such a manner that the trailing edge of each flap overlaps a leading edge of a rearwardly located adjacent flap to present a continuous belt-like surface.
The operation of the conveyor will now be described using the unloading of fine grain, such as oats, from a truck, for example.
It is assumed that the conveyor is suitably attached to the under surface of the truck bin 9, as illustrated in Fig. 1. Motor 60 is activated to drive sprocket wheels 30 for pulling chains 20, in their engagement with floor 7 and idler sprockets 40, to the rear of the q~
conveyor. Flexible flaps 50, under the weight of the yraln, conform to the shape of the unclerlying structure--the floor 7, the chains 20, attachment bars 25, and scrapers 55---to form "pockets" in each flap. These moving pockets tend to prevent slippage between grain particles for improved eficiency of emptying of the bin. The weight of the grain also tends to seal the sides of flaps ~0 against side walls ~ to prevent accumulation of grain below the flaps. Be-cause of their greater density, rocks or stones which have been mixed with the grain during harvesting, tend to work to the bottom of the conveyor and will occasionally work under the flaps together with small amounts of grain. Any such debris is swept rearwardly by scraper 55 of each flap until ejected at the end of the conveyor.
It is to be particularly noted that rocks which may become lodged in or under chain links may cause the chain to rise above the plane of the floor upon which it rides. In that each chain is independent relative to a laterally spaced chain, for the reason that the chains are connected laterally only by flexible flaps and scrapers, the conveyor continues to function.
As each flap reaches the end of the conveyor, the trailing edge of the flap slips on the leading edge of the adjacent successive rearward flap thereby accommodating for the increased pitch diameter of the sprockets. The trailing edge of the flap is then flipped outwardly, tending to free the flap of attached grain particles.
Any grain which may adhere to the flap is likely to be discharged as the flap engages spaced trusses 6 on its return flight.
Having thus described in detail a preferred embodiment of the present invention, it is to be appreciated and will be apparent to those skilled in the art that many physical changes could be made in the apparatus without altering the inventive concepts and principles embodied therein. The present embodiments are therefore to be consi-dered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore to be embraced therein.
Claims (7)
1. Conveyor apparatus for bulk goods comprising:
an elongated floor having a substantially planar upper surface;
a pair of oppositely disposed side walls upwardly extending from respective edges of said floor;
a framework operable to support said floor and said side walls;
drive sprocket means rotatably mounted to said framework adjacent one end of said floor;
idler means rotatably mounted to said framework adjacent the opposing end of said floor;
endless chain means engaging said drive sprocket means and said idler means to define an upper flight supported on said floor and a lower flight returning below said floor;
a plurality of flexible conveyor flap members fixed to said chain means, each of said flap members having a forward edge and a trailing edge, said trailing edge adapted to overlap the forward edge of a rearwardly and adjacently mounted flap along the upper flight and each of said flap members including a downwardly depending flexible scraper operable to engage and be supported upon the upper surface of said floor; and power means connected to said drive sprocket means for moving said endless chain means with attached flap members in a selected direction.
an elongated floor having a substantially planar upper surface;
a pair of oppositely disposed side walls upwardly extending from respective edges of said floor;
a framework operable to support said floor and said side walls;
drive sprocket means rotatably mounted to said framework adjacent one end of said floor;
idler means rotatably mounted to said framework adjacent the opposing end of said floor;
endless chain means engaging said drive sprocket means and said idler means to define an upper flight supported on said floor and a lower flight returning below said floor;
a plurality of flexible conveyor flap members fixed to said chain means, each of said flap members having a forward edge and a trailing edge, said trailing edge adapted to overlap the forward edge of a rearwardly and adjacently mounted flap along the upper flight and each of said flap members including a downwardly depending flexible scraper operable to engage and be supported upon the upper surface of said floor; and power means connected to said drive sprocket means for moving said endless chain means with attached flap members in a selected direction.
2. The conveyor apparatus as described in Claim 1 wherein each scraper of each of said flap members is mounted parallel to and adjacent to the forward edge of each of said flaps.
3. The conveyor apparatus as described in Claim 1 wherein said drive sprocket means includes at least two laterally spaced drive sprockets;
wherein said idler means includes at least two laterally spaced end-less chains operable to engage respective drive sprockets and idler sprockets; and wherein each of said scrapers on each of said flaps extend the substantial width of said floor exclusive of said chains.
wherein said idler means includes at least two laterally spaced end-less chains operable to engage respective drive sprockets and idler sprockets; and wherein each of said scrapers on each of said flaps extend the substantial width of said floor exclusive of said chains.
4. The conveyor apparatus as described in Claim 3 wherein each of said flaps are fixed to each of said chains by separate mounting brackets to permit flexing of lateral portions of each flap located between each of said chains.
5. The conveyor apparatus as described in Claim 1 wherein each of said sidewalls are upwardly diverging from the respective edges of said floor.
6. Conveyor apparatus for bulk goods comprising:
an elongated floor having a substantially planar upper surface;
a pair of oppositely disposed longitudinal side walls upwardly and divergently extending from respective edges of said floor;
a framework operable to support said floor and said side walls;
at least two laterally spaced drive sprockets rotatably mounted to said framework adjacent one end of said floor;
idler means mounted to said framework adjacent the opposing end of said floor;
at least two endless chains, each of said chains operable to engage respective longitudinally spaced drive sprockets and said idler means, each of said chains provided with a plurality of indivi-dual flap attachment brackets longitudinally spaced along the length of the chains;
a plurality of flexible conveyor flap members attached to said flap attachment brackets, each of said flap members having a forward edge and a trailing edge, said trailing edge adapted to overlap the forward edge of a rearwardly and adjacently mounted flap along the upper flight; and power means connected to and operable to drive each of said drive sprockets for longitudinal movement of said flaps.
an elongated floor having a substantially planar upper surface;
a pair of oppositely disposed longitudinal side walls upwardly and divergently extending from respective edges of said floor;
a framework operable to support said floor and said side walls;
at least two laterally spaced drive sprockets rotatably mounted to said framework adjacent one end of said floor;
idler means mounted to said framework adjacent the opposing end of said floor;
at least two endless chains, each of said chains operable to engage respective longitudinally spaced drive sprockets and said idler means, each of said chains provided with a plurality of indivi-dual flap attachment brackets longitudinally spaced along the length of the chains;
a plurality of flexible conveyor flap members attached to said flap attachment brackets, each of said flap members having a forward edge and a trailing edge, said trailing edge adapted to overlap the forward edge of a rearwardly and adjacently mounted flap along the upper flight; and power means connected to and operable to drive each of said drive sprockets for longitudinal movement of said flaps.
7. The conveyor apparatus as described in Claim 6 wherein at least one of said flap members includes a downwardly depending flexible scraper operable to engage and be supported upon the upper surface of said floor when said flaps are placed under load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000417620A CA1186269A (en) | 1982-12-14 | 1982-12-14 | Conveyor for bulk goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000417620A CA1186269A (en) | 1982-12-14 | 1982-12-14 | Conveyor for bulk goods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1186269A true CA1186269A (en) | 1985-04-30 |
Family
ID=4124143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000417620A Expired CA1186269A (en) | 1982-12-14 | 1982-12-14 | Conveyor for bulk goods |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1186269A (en) |
-
1982
- 1982-12-14 CA CA000417620A patent/CA1186269A/en not_active Expired
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| MKEC | Expiry (correction) | ||
| MKEX | Expiry |