MASS-BALANCED VIBRATING CONVEYOR

• US 3,817,370 A
• Filed: 12/01/1972
• Issued: 06/18/1974
• Est. Priority Date: 11/13/1972
• Status: Expired due to Term

• Current Assignee: Delta Food Processors Ltd.
• Original Assignee: James P. Cox
• Inventors: Cox, James P.
• Primary Examiner(s): Blunk, Evon C.
• Assistant Examiner(s): Valenza, Joseph E.
• Application Number:
  US05/305,972
• Time in Patent Office: 564 Days
• Field of Search: 198/22CB,22A,22CA,22DA 209/313,344,365R,415
• US Class Current: 198/579
• CPC Class Codes: B07B 1/42 Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
• CPC Class Codes: B65G 27/30 by means of an oppositely-moving mass, e.g. a second conveyor

Abstract

A tray mounted on inclined flexible spring leaves is vibrated by reciprocation opposite to the reciprocation of a balancing mass. The balancing mass can be motor mechanism effecting vibration of the tray through lever means or another tray which is reciprocated oppositely to the first tray.

Claims

1. In a mass-balanced vibrating conveyor including a tray, generally parallel leaves inclined relative to the tray and supporting the tray generally horizontally, and drive means for effecting reciprocation of the tray generally horizontally but the tray being raised during reciprocation in one direction and lowered during reciprocation in the opposite direction, the improvement comprising pivot means, lever means independent of the tray-supporting leaves, guided by said pivot means for swinging about said pivot means and having a first arm at one side of said pivot means connected to the tray and disposed generally parallel to the leaves aNd having a second arm at the other side of said pivot means, and a balancing mass of approximately the same mass as the tray connected to said second arm of said lever means for reciprocating movement always in the direction opposite to the direction of reciprocation of the tray.

2. The conveyor defined in claim 1, in which the lever means are freely movable lengthwise relative to the pivot means.

3. The conveyor defined in claim 2, in which the lever means includes a lever member having therein an elongated slot arranged with its length extending lengthwise of said lever member, and the pivot means includes a pivot extending through such slot.

4. The conveyor defined in claim 1, in which the two arms of the lever means are of relatively telescoping structure, and the pivot means are engaged with the second arm of the lever means.

5. The conveyor defined in claim 1, in which the balancing mass is carried by and moves with the second arm of the lever means.

6. The conveyor defined in claim 1, in which the balancing mass includes the drive means.

7. The conveyor defined in claim 1, in which the balancing mass includes a second tray adjacent to the first tray, second lever means connected to said second tray for effecting swinging thereof, and means connecting the two lever means for effecting conjoint swinging thereof in opposite directions to reciprocate the two trays in opposite directions.

8. The conveyor defined in claim 7, the second lever means including a portion inclined relative to the second tray, and generally parallel leaves inclined relative to and supporting the second tray and disposed substantially parallel to said portion of the lever means inclined relative to the second tray.

9. The conveyor defined in claim 8, in which the leaves supporting one of the trays are longer than the leaves supporting the other tray.

10. The conveyor defined in claim 1, and means supporting the leaves for adjustment to vary their effective length.

11. The conveyor defined in claim 1, means supporting the leaves for adjustment of their degree of inclination relative to the tray supported by them, and means for changing the degree of inclination of the lever means correspondingly.

12. The conveyor defined in claim 1, in which the balancing mass includes a second tray adjacent to the first tray, second lever means connected to said second tray for effecting swinging thereof, and means connecting the two lever means for effecting conjoint swinging thereof.

13. The conveyor defined in claim 12, the second lever means including a portion inclined relative to the second tray, and generally parallel leaves inclined relative to and supporting the second tray and disposed substantially parallel to such portion of the lever means inclined relative to the second tray.

14. The conveyor defined in claim 13, in which the leaves supporting one of the trays are longer than the leaves supporting the other tray.