Diverting flat belt support system
AssigneeGeo. M. Martin Company
InventorsDaniel J. Talken, Charles D. Rizzuti
Life of this patent
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Abstract
A flat belt support system with a drive roller and paired pulleys, each pair carrying a continuous flat belt that can be moved laterally along the drive roller axis and angled away from the plane normal to the drive roller axis. Multiple belts, each carried by a pair of pulleys, can be driven by a single drive roller. An additional roller allows the drive roller to be positioned so that it contacts the flat belt cover, rather than the back of the flat belt, improving friction between the drive roller and the flat belt.
Claims23
A flat belt (4) and support system (84) for a flat belt (4) for conveying objects (38) from the entrance portion (86) of a conveyance surface (30) proximate a first roller (65) to the exit portion (87) of the conveyance surface (30) proximate a first pulley (67), the flat belt (4) and support system (84) comprising:
- a. a flat belt (4) having a back (7), an outer cover (10) and a centerline belt path (83);
- b. a first roller (65) having a rotational axis (59), an outer surface (88) supporting the back (7) of the flat belt (4) and an entrance velocity plane (58) perpendicular to the rotational axis (59) which intersects the first roller average contact centerline belt path (96) which is the average lateral position of the centerline belt path (83) along the rotational axis (59) where the back (7) of the flat belt (4) is in contact with the first roller outer surface (88);
- c. a first pulley (67) having a rotational axis (63) and an outer surface (89) supporting the back (7) of the flat belt (4) with an exit velocity plane (62) perpendicular to the rotational axis (63) which intersects the first pulley average contact centerline belt path (97) which is the average lateral position of the centerline belt path (83) along the rotational axis (63) where the back (7) of the flat belt (4) is in contact with the first pulley outer surface (89);
- and
- d. a second pulley (68) having a rotational axis (76) and an outer surface (91) supporting the back (7) of the flat belt (4) with a return velocity plane (75) perpendicular to the rotational axis (76) which intersects the second pulley average contact centerline belt path (99) which is the average lateral position of the centerline belt path (83) along the rotational axis (76) where the back (7) of the flat belt (4) is in contact with the second pulley outer surface (91), wherein:
- i. the flat belt (4) has an upper conveyance surface (30);
- ii. the conveyance surface (30) has an entrance portion (86) and an entrance velocity plane (58) proximate the first roller (65);
- iii. the conveyance surface (30) has an exit portion (87), and an exit velocity plane (62) proximate the first pulley (67);
- iv. the first pulley (67) deflects the flat belt (4) from the entrance velocity plane (58) to the exit velocity plane (62);
- v. the entrance velocity plane (58) and the exit velocity plane (62) are not coplanar and not parallel;
- and
- vi. the return velocity plane (75) is substantially coplanar with the exit velocity plane (62).
A plurality of flat belts (4, 4′) and support systems (84, 84′) for the plurality of flat belts (4,4′) each of the plurality of flat belts being for conveying objects (38) from the entrance portion (86, 86′) of a conveyance surface (30, 30′) proximate a first roller (65) to the exit portion (87, 87′) of the conveyance surface (30, 30′) proximate each associated first pulley (67, 67′), each of the plurality of flat belts (4, 4′) and support systems (84, 84′) comprising:
- a. a flat belt (4, 4′) having a back (7, 7′), an outer cover (10, 10′) and a centerline belt path (83, 83′);
- b. a first roller (65) common to the plurality of flat belts (4, 4′) and support systems (84, 84′) having a rotational axis (59), an outer surface (88) supporting the back (7, 7′) of the flat belt (4, 4′) and an entrance velocity plane (58, 58′) perpendicular to the rotational axis (59) which intersects the first roller average contact centerline belt path (96, 96′) which is the average lateral position of the centerline belt path (83, 83′) along the rotational axis (59) where the back (7, 7′) of the flat belt (4, 4′) is in contact with the first roller outer surface (88);
- c. a first pulley (67, 67′) having a rotational axis (63, 63′) and an outer surface (89, 89′) supporting the back (7, 7′) of the flat belt (4, 4′) with an exit velocity plane (62, 62′) perpendicular to the rotational axis (63, 63′) which intersects the first pulley average contact centerline belt path (97, 97′) which is the average lateral position of the centerline belt path (83, 83′) along the rotational axis (63, 63′) where the back (7, 7′) of the flat belt (4, 4′) is in contact with the first pulley outer surface (89, 89′);
- and
- d. a second pulley (68, 68′) having a rotational axis (76, 76′) and an outer surface (91, 91′) supporting the back (7, 7′) of the flat belt (4, 4′) with a return velocity plane (75, 75′) perpendicular to the rotational axis (76, 76′) which intersects the second pulley average contact centerline belt path (99, 99′) which is the average lateral position of the centerline belt path (83, 83′) along the rotational axis (76, 76′) where the back (7, 7′) of the flat belt (4, 4′) is in contact with the second pulley outer surface (91, 91′), wherein:
- i. the flat belt (4, 4′) has an upper conveyance surface (30, 30′);
- ii. the conveyance surface (30, 30′) has an entrance portion (86, 86′) and an entrance velocity plane (58, 58′) proximate the first roller (65);
- iii. the conveyance surface (30, 30′) has an exit portion (87, 87′), and an exit velocity plane (62, 62′) proximate the first pulley (67, 67′);
- iv. the first pulley (67, 67′) deflects the flat belt (4, 4′) from the entrance velocity plane (58, 58′) to the exit velocity plane (62, 62′);
- v. the entrance velocity plane (58, 58′) and the exit velocity plane (62, 62′) are not coplanar and not parallel;
- and
- vi. the return velocity plane (75, 75′) is substantially coplanar with the exit velocity plane (62, 62′).
Dependencies are inferred from the claim text.