USRE47836EActiveUtility

Flight conveyor

Assignee: LAITRAM LLCPriority: Sep 12, 2011Filed: Sep 10, 2012Granted: Feb 4, 2020

Est. expirySep 12, 2031(~5.1 yrs left)· nominal 20-yr term from priority

Inventors:Palle Stockhold Johansson

B65G 17/067B65G 21/22B65G 45/12B65G 2201/0202B65G 15/42B65G 17/40B65G 17/18

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References

Claims

Abstract

A flight conveyor for conveying material includes a frame, drive and idler wheel(s) rotatably mounted on the frame, segments for supporting the material, shafts for pivotally interconnecting the segments to an endless row which has an upper row and a lower row running, during operation, over the drive and idler wheel(s) and a number of conveyor flights for bringing the material along in the conveying direction. A scraper is arranged at the drive wheel for successively scraping off adhered material from segments and flights such that the conveyor can be used for conveying products tending to adhere to the surfaces of the segments and the flights since the adhered products are automatically removed by the scraper.

Claims

exact text as granted — not AI-modified

What is claimed is:

1. A flight conveyor of the kind which is arranged for conveying a material from one position to another, comprising,
a frame,
at least one drive wheel and at least one idler wheel rotatably mounted on the frame,
a number of segments for supporting the material,
a number of shafts for pivotally interconnecting the segments to an endless row which has an upper row part and lower row part and is running, during operation, over the at least one drive wheel and the at least one idler wheel, and
a number of conveyor flights for bringing the material along in the conveying direction, wherein:
the flights are each pivotally mounted on each their shaft,
at least one rail is extending between the idler wheel and the drive wheel in an area below the upper row part,
at least one slide, which is mounted on the back of each flight, seen in the conveying direction, is slidingly supported by the at least one rail,
the segment behind each flight is formed with a at least one through slit which fits the slide on the flight,
at least one rail is extending between the idler wheel and the drive wheel in an area below the upper row part,
at least one slide, which is mounted on the back of each flight, seen in the conveying direction, is slidingly supported by the at least one rail,
removing means is arranged at the drive wheel for successively removing adhered material from segments and flights passing the removing means during operation, and
the flights can pivot freely around their shaft when transported between the removing means and the at least one rail.

2. A flight conveyor according to claim 1 , wherein the at least one rail is only extending between the idler wheel and the drive wheel in an area below the upper row part.

3. A flight conveyor according to claim 1 , wherein the removing means comprises at least one scraper having an edge which is close to or abuts the surface of segments and flights passing the scraper.

4. A flight conveyor according to claim 1 , wherein the back of each slide has a shape like a sector of a circle with the centre placed in the axis of the shafts and a radius having a length corresponding to the distance from the axis of the axle to the distant end of the slit.

5. A flight conveyor according to claim 1 , wherein the height of each flight measured from the axis of the shaft corresponds to the radius of the sector of circle of the slide.

6. A flight conveyor according to claim 1 , wherein the segment behind each flight is formed with a recess corresponding at least in the main to the shape of the flight.

7. A flight conveyor according to claim 1 , wherein the upper face of both ends of the at least one rail extends into a descending curve.

8. A flight conveyor according to claim 1 , wherein each slide is equipped with a slide shoe for sliding on the rail during operation.

9. A flight conveyor of the kind which is arranged for conveying a material from one position to another, comprising,
a frame,
at least one drive wheel and at least one idler wheel rotatably mounted on the frame,
a number of segments for supporting the material,
a number of shafts for pivotally interconnecting the segments to an endless row which has an upper row part and lower row part and is running, during operation, over the at least one drive wheel and the at least one idler wheel, wherein the shafts of the flight conveyor are connected to two opposite chains placed at each their side of the rows of segments, and that each chain, during operation, is running over a drive sprocket and an idler sprocket rotatably mounted on the frame of the conveyor belt, and
a number of conveyor flights for bringing the material along in the conveying direction, wherein:
the flights are each pivotally mounted on each their shaft,
at least one rail is extending between the idler wheel and the drive wheel in an area below the upper row part,
at least one slide, which is mounted on the back of each flight, seen in the conveying direction, is slidingly supported by the at least one rail,
a scraper scraping member is arranged at the drive wheel for successively removing adhered material from segments and flights passing the scraper scraping member during operation, and
the flights can pivot freely around their shaft when transported between the scraper scraping member and the at least one rail.

10. A flight conveyor according to claim 9 , wherein each slide has a width corresponding to the width of the segments between the chains and that the previous segment has been removed.

11. A flight conveyor according to claim 9 , wherein the segment behind each flight is formed with a recess corresponding at least in the main to the shape of the flight.

12. A flight conveyor according to claim 9 , wherein the upper face of both ends of the at least one rail extends into a descending curve.

13. A flight conveyor according to claim 9 , wherein each slide has a width corresponding to the width of the segments between the chains and that the previous segment has been removed.

14. A flight conveyor of the kind which is arranged for conveying a material from one position to another, comprising,
a frame,
at least one drive wheel and at least one idler wheel rotatably mounted on the frame,
a number of segments for supporting the material,
a number of shafts for pivotally interconnecting the segments to an endless row which has an upper row part and lower row part and is running, during operation, over the at least one drive wheel and the at least one idler wheel, and
a number of conveyor flights for bringing the material along in the conveying direction, wherein:
the flights are each pivotally mounted on each their shaft,
at least one rail extends between the idler wheel and the drive wheel in an area below the upper row part,
at least one slide, which is mounted on the back of each flight, seen in the conveying direction, is slidingly supported by the at least one rail,
the segment behind each flight is formed with a at least one through slit which fits the slide on the flight,
at least one rail extends between the idler wheel and the drive wheel in an area below the upper row part,
at least one slide, which is mounted on the back of each flight, seen in the conveying direction, is slidingly supported by the at least one rail,
a scraper scraping member is arranged at the drive wheel for successively removing adhered material from segments and flights passing the scraper scraping member during operation, and
the flights can pivot freely around their shaft when transported between the scraper scraping member and the at least one rail.

15. A flight conveyor according to claim 14 , wherein the back of each slide has a shape like a sector of a circle with the centre placed in the axis of the shafts and a radius having a length corresponding to the distance from the axis of the axle to the distant end of the slit.

16. A flight conveyor according to claim 14 , wherein the segment behind each flight is formed with a recess corresponding at least in the main to the shape of the flight.

17. A flight conveyor according to claim 14 , wherein the upper face of both ends of the at least one rail extends into a descending curve.

18. A flight conveyor according to claim 14 , wherein each slide has a width corresponding to the width of the segments between the chains and that the previous segment has been removed.

19. A flight conveyor of the kind which is arranged for conveying a material from one position to another, comprising,
a frame, at least one drive wheel and at least one idler wheel rotatably mounted on the frame, a number of segments for supporting the material, a number of shafts for pivotally interconnecting the segments to an endless row which has an upper row part and lower row part and is running, during operation, over the at least one drive wheel and the at least one idler wheel, and a number of conveyor flights for bringing the material along in the conveying direction, wherein: the flights are pivotally mounted on some of the shafts, at least one rail is extending between the idler wheel and the drive wheel in an area below the upper row part, at least one slide, which is mounted on the back of each flight, seen in the conveying direction, is slidingly supported by the at least one rail, the segment behind each flight is formed with at least one through slit which fits the slide on the flight, removing means is arranged at the drive wheel for successively removing adhered material from segments and flights passing the removing means during operation, and the flights can pivot freely around their respective shafts when transported between the removing means and the at least one rail.

20. A flight conveyor according to claim 19, wherein the removing means comprises at least one scraper having an edge which is close to or abuts the surface of segments and flights passing the scraper.

21. A flight conveyor according to claim 19, wherein each slide is equipped with a slide shoe for sliding on the rail during operation.

22. A flight conveyor of the kind which is arranged for conveying a material from one position to another, comprising,
a frame, at least one drive wheel and at least one idler wheel rotatably mounted on the frame, a number of segments for supporting the material, a number of shafts for pivotally interconnecting the segments to an endless row which has an upper row part and lower row part and is running, during operation, over the at least one drive wheel and the at least one idler wheel, wherein the shafts of the flight conveyor are connected to two opposite chains placed at each side of the rows of segments, and that each chain, during operation, is running over the at least one drive wheel and the at least one idler wheel rotatably mounted on the frame, and a number of conveyor flights for bringing the material along in the conveying direction, wherein: the flights are pivotally mounted on some of the shafts, at least one rail is extending between the idler wheel and the drive wheel in an area below the upper row part, at least one slide, which is mounted on the back of each flight, seen in the conveying direction, is slidingly supported by the at least one rail, a scraping member is arranged at the drive wheel for successively removing adhered material from segments and flights passing the scraping member during operation, and the flights can pivot freely around their respective shafts when transported between the scraping member and the at least one rail.

23. A flight conveyor according to according to claim 22, wherein each slide has a width corresponding to the width of the segments between the chains and that the previous segment has been removed.

24. A flight conveyor according to claim 22, wherein the segment behind each flight is formed with a recess corresponding at least in the main to the shape of the flight.

25. The flight conveyor according to claim 22 wherein the front surface of each flight passes the removing means at substantially the same level as the front surface of surrounding segments.

26. The flight conveyor according to claim 22 wherein the flight is a flat plate.

27. A flight conveyor of the kind which is arranged for conveying a material from one position to another, comprising,
a frame, at least one drive wheel and at least one idler wheel rotatably mounted on the frame, a number of first and second segments having surfaces for supporting the material with the second segments having at least one through slit therein, a number of shafts for pivotally interconnecting the segments into a conveyor belt running over the at least one drive wheel and the at least one idler wheel, and a number of conveyor flights for bringing the material along in the conveying direction, wherein: the flights are pivotally mounted on the shafts associated with the front end of the second segments taken in the conveying direction, at least one rail is provided between the idler wheel and the drive wheel, at least one slide is mounted on the back of each flight, seen in the conveying direction, the second segments are positioned behind the flights with their through slit fitting the slide on their respective flights, removing means is arranged with respect to the conveyor belt for successively removing adhered material from the surfaces of the segments and flights passing the removing means during operation, and the flights can pivot freely around their respective shafts when transported between the removing means and the at least one rail.

28. The flight conveyor according to claim 27 wherein the flight is a flat plate and the removing means is a scraper arranged at the drive wheel to remove adhered material from the surfaces of the segments and flights passing the scraper during operation.

29. The flight conveyor according to claim 27, wherein the back of each slide has a shape like a sector of a circle with the center placed in the axis of the shafts and a radius having a length corresponding to the distance from the axis of the shaft to the distant end of the slit.

30. The flight conveyor according to claim 27 wherein the second segment is formed with a recess corresponding at least in the main to the shape of the flight.

31. The flight conveyor according to claim 27 wherein the front surface of each flight passes the removing means at substantially the same level as the surfaces of surrounding segments.

32. The flight conveyor according to claim 27 wherein the through slit extends transversely over a major portion of the second segment and the respective slide fills the opening of the through slit.

33. A flight conveyer conveyor belt comprising:
a number of segments for supporting the material, a number of shafts for pivotally interconnecting the segments in an endless row, a number of conveyor flights, each having at least one slide mounted on the back of each flight, the flights being pivotally mounted on some of the shafts, with the segments behind the flights being formed with at least one through slit which fits the slide on the flight.

34. The belt according to claim 33, wherein the through slit extends transversely over a major portion of its segment and the respective slide fills the opening of the through slit.

35. The belt according to claim 33 wherein the segment behind each flight is formed with a recess corresponding at least in the main to the shape of the flight.

36. The belt according to claim 33 wherein the back of each slide has a shape like a sector of a circle with the center placed in the axis of the shafts and a radius having a length corresponding to the distance from the axis of the shaft to the distant end of the slit.

37. The belt according to claim 33 wherein a plurality of slides are mounted on the back of the flights.

38. The belt according to claim 33 wherein each slide is formed with a slide shoe.

39. The conveyor belt according to claim 33 wherein first and second segments are provided for supporting the material, the first segments being substantially solid and the second segments having at least one through slit therein to receive the slide.

40. The belt according to claim 39 wherein the through slit extends transversely over a major portion of the second segment and the respective slide fills the opening of the through slit.

41. The belt according to claim 39 wherein the second segment is formed with a recess corresponding at least in the main to the shape of the flight.

42. The belt according to claim 39 wherein a plurality of slides are mounted on the back of the flights.

43. The belt according to claim 39 wherein each slide is formed with a slide shoe.

44. In a flight conveyer having a frame, at least one drive wheel and at least one idler wheel rotatably mounted on the frame, at least one rail between the idler wheel and the drive wheel and removing means arranged near the drive wheel, a conveyor belt comprising:
a number of segments for supporting the material, a number of shafts for pivotally interconnecting the segments in an endless row, a number of conveyor flights, the flights being pivotally mounted on some of the shafts, at least one slide mounted on the back of each flight, the segments behind the flights are formed with at least one through slit which fits their slides on their respective flights, wherein the slides of the flights are adapted to slide along the rail causing the flights to pivot to a substantially perpendicular position to the segments in the conveying direction and then leave the rail allowing the flights to pivot freely around their respective shafts.

45. The belt according to claim 44 wherein the through slit extends transversely over a major portion of its segment and the respective slide fills the opening of the through slit.

46. The belt according to claim 44 wherein the segment behind each flight is formed with a recess corresponding at least in the main to the shape of the flight.

47. The belt according to claim 44 wherein the back of each slide has a shape like a sector of a circle with the center placed in the axis of the shafts and a radius having a length corresponding to the distance from the axis of the shaft to the distant end of the slit.

48. The belt according to claim 44 wherein a plurality of slides are mounted on the back of the flights.

49. The belt according to claim 44 wherein each slide is formed with a slide shoe.

50. The belt according to claim 44 wherein first and second segments are provided for supporting the material, the first segments being substantially solid and the second segments having at least one through slit therein to receive the slide.

51. The belt according to claim 50 wherein the through slit extends transversely over a major portion of the second segment and the respective slide fills the opening of the through slit.

52. The belt according to claim 50 wherein the second segment is formed with a recess corresponding at least in the main to the shape of the flight.

53. The belt according to claim 50 wherein the front surface of each flight passes the removing means at substantially the same level as the front surface of surrounding segments.

54. The belt according to claim 50 wherein a plurality of slides are mounted on the back of the flights.

55. The belt according to claim 50 wherein each slide is formed with a slide shoe.

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