Conveyor

• US 4,231,469 A
• Filed: 10/24/1978
• Issued: 11/04/1980
• Est. Priority Date: 01/20/1978
• Status: Expired due to Term

• Current Assignee: Ling Systems Ltd.
• Original Assignee: Ling Systems Ltd.
• Inventors: Arscott, John R.
• Primary Examiner(s): Reeves, Robert B.
• Assistant Examiner(s): Church, Gene A.
• Application Number:
  US05/954,200
• Time in Patent Office: 742 Days
• Field of Search: 198/779, 198/645, 198/377, 198/851, 193/35 TE, 193/35 F
• US Class Current: 198/779
• CPC Class Codes: B65G 17/06 having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
• CPC Class Codes: B65G 17/24 comprising a series of rollers which are moved , e.g. over a supporting surface, by the traction element to effect conveyance of loads or load-carriers
• CPC Class Codes: B65G 2201/02 Articles

Abstract

A conveyor comprises a plurality of interconnected cradles and a rotatable member mounted in each cradle. The rotatable members extend above the respective cradle for rolling contact with an object placed on the conveyor to allow the objects to move relative to the conveyor.

Claims

1. A conveyor comprising:

a plurality of cradles, each of said plurality of cradles further having a substantially "H" shape;

a plurality of rotatable members mounted in spaced relationship to said plurality of rotatable cradles, each of said rotatable members further being mounted on each side of the bridge of the "H" shape of each of said plurality of cradles; and

means for rotatably mounting each of said rotatable members in each of said plurality of cradles such that each of said rotatable members extends above each of said plurality of cradles for rolling contact with an object placed on the conveyor.

3. A conveyor as claimed in claim 1 or 2, wherein said plurality of rotatable members are further oriented in spaced relationship to said plurality of cradles with the axis of said plurality of rotatable members mounted transversely of the direction of movement of the conveyor.

4. A conveyor as claimed in claim 1 or 2, wherein said plurality of rotatable members are further oriented in spaced relationship to said plurality of cradles with the axis of said plurality of rotatable members mounted in the direction of movement of the conveyor.

11. A conveyor as claimed in claim 10 or 1, wherein each of said plurality of cradles is formed as a single plastics moulding.

2. A conveyor for moving an object, said conveyor comprising:

a plurality of cradles, each of said plurality of cradles comprising;

at least two parallel support members; and

transverse spacer means connecting said at least two parallel support members to form a generally "H" shaped cradle;

a plurality of rotatable members mounted in spaced relationship to said plurality of cradles, each of said plurality of rotatable members having an outer diameter extending above said plurality of cradles for rolling contact with the object placed thereon; and

means for pivoting at least one of said plurality of cradles with respect to at least one other of said plurality of cradles so as to form the conveyor, said pivoting means mounted to said at least two parallel support members of each of said plurality of cradles such that when an object is placed on the conveyor, the object contacts only said plurality of rotatable members for unobstructed rolling contact therewith thereby moving the object along the conveyor without contacting said plurality of cradles.

5. A conveyor as claimed in claim 2, wherein said means for pivoting further comprises:

first means for interconnecting said at least one of said plurality of cradles to said at least one other of said plurality of cradles to form at least one row such that said at least one of said plurality of cradles in each of said rows is spaced a predetermined distance from said at least one other of said plurality of cradles.

6. A conveyor as claimed in claim 2, wherein said means for pivoting further comprises:

second means for interconnecting said at least one of said plurality of cradles in each of said rows to said at least one other of said plurality of cradles in an adjacent row such that said at least one of said plurality of cradles is staggered a predetermined distance with respect to said at least one other of said plurality of cradles.

7. A conveyor as claimed in claim 2, wherein said means for pivoting further comprises:

a plurality of rods extending transversely of the conveyor;

said first end of each of said at least two parallel support members further having a first hole;

said second end of each of said at least two parallel support members further having a second hole; and

one of said rods pivotably engaging said first hole of said first end of said at least two parallel support members and another of said rods pivotably engaging said second hole of said second end of said at least two parallel support member to form rows of said cradles and to pivotably support said plurality of cradles.

8. A conveyor as claimed in claim 7, wherein each of said rows of said cradles further being connected to an adjacent parallel row of cradles by said one of said rods in said row acting as said one other of said rods of the adjacent row of cradles and by said one other of said rods in said row acting as said one of said rods of the adjacent row of cradles.

9. A conveyor as claimed in claim 2, wherein said plurality of rotatable members further being removably mounted in said plurality of cradles enabling the axis of rotation of each of said rotatable members to be oriented from a first position with the axis of rotation of each of said rotatable members lying in the direction of movement of the conveyor to a second position with the axis of rotation of each of said rotatable members extending transversely of the conveyor.

10. A conveyor as claimed in claim 7, wherein transverse spacer means further comprises two side walls interconnecting said at least two parallel support members.

12. A conveyor as claimed in claim 7, wherein said means for pivoting further comprises:

said plurality of cradles are arranged in parallel transverse rows and said rotatable members of adjacent rows are aligned with each other when viewed in the direction of movement of the conveyor.

13. A conveyor as claimed in claim 7, wherein

each of said rotatable members further having a central hole;

and

wherein each of said rods further extends transverse to the conveyor and passes through said central hole in each of said rotatable members to support said rotatable members in the cradle.

15. A conveyor as claimed in claim 13, wherein:

each of said plurality of cradles further comprises;

a first projection mounted laterally outward from one of said at least two parallel support members in line with said transverse spacer means and a second projection mounted laterally outward from one other of said at least two parallel support members in line with said transverse spacer means;

said at least one of said plurality of cradles further being arranged in a parallel transverse row, said at least one other of said plurality of cradles further being arranged in an adjacent parallel transverse row;

said at least two parallel support members in said at least one of said plurality of cradles in said parallel transverse row further being staggered with respect to said at least two parallel support members in said at least one other of said plurality of cradles in said adjacent parallel transverse row;

said first and second projections of said at least one of said plurality of cradles further being in overlapping relationship to said first and second projections of said at least one other of said plurality of cradles;

one of said rods further extending through each of said first hole in said each of said at least two parallel support members in said at least one of said plurality of cradles in said parallel transverse row and through each of said second hole in said at least one other of said at least two parallel support members in said at least one other of said plurality of cradles in said adjacent parallel transverse row.

18. A conveyor as claimed in claim 2 wherein:

each of said at least two parallel support members further has a first end and a second end; and

said transverse means further being connected to each of said at least two parallel support members between said first end and said second end of each of said at least two support members to form a generally "H" shaped cradle.

19. A conveyor as claimed in claim 18 wherein:

one of said plurality of rotatable members further being mounted on one side of said transverse spacer means between each of said first end of said at least two parallel members, another of said plurality of rotatable members further being mounted on the opposite side of said transverse spacer means between each of said second end of said at least two parallel support members; and

said pivoting means further comprising;

means for connecting said at least one of said plurality of cradles with respect to said at least one other of said plurality of cradles to form a plurality of rows;

said plurality of cradles in one of said plurality of rows being staggered with respect to said plurality of cradles in another of said plurality of rows with said first end of said each of said at least two support members in said one of said plurality of rows overlapping said second end of said each of said at least two support members in said another of said plurality of rows; and

said connecting means further comprising;

each of said rotatable members further having a concentric hole;

each of said first end of each of said at least two parallel support members further having a first hole;

each of said second end of each of said at least two parallel support members further having a second hole; and

a plurality of rods extending transversely of the conveyor, one of said rods pivotably engaging each of said first hole of each of said first end of said at least two parallel support members and another of said rods pivotably engaging each of said second hole of each of said second end of said at least two parallel support members to form rows of said cradles and to pivotably support said plurality of cradles and to pass through each of said first and second holes in said rotatable members to support each of said plurality of rotatable members in said cradle.

20. A conveyor as claimed in claim 18 wherein one of said plurality of rotatable members further being mounted on one side of said transverse spacer means between said each of said first end of said at least two parallel members, another of said plurality of rotatable members further being mounted on the opposite side of said transverse spacer means between each of said second ends of said at least two parallel support members;

and

said pivoting means further comprising;

each of said rotatable members further having a concentric hole;

said first end of each of said at least two parallel support members further having a first hole;

said second end of each of said at least two parallel support members further having a second hole; and

a plurality of rods extending transversely of the conveyor, one of said rods pivotably engaging said first hole of each of said first end of said at least two parallel support members and another of said rods pivotably engaging said second hole of each of said second end of said at least two parallel support members to form rows of said cradles and to pivotably support said plurality of cradles and each of said rotatable members in said cradles.

14. A conveyor comprising:

a plurality of cradles each of said plurality of cradles having at least two links, each of said at least two links has, when viewed in plan, a substantially "H" shape with the bridge of the "H" extended to project laterally outwards from the arms of the "H," the links being arranged in parallel transverse rows, the links of adjacent rows being staggered with respect to each other and the arms of adjacent rows overlapping each other when viewed in a transverse direction, such that each cradle is formed by the bridge and one end of the arms of a first link of one row and a bridge extension portion together with one arm of each of a pair of adjacent links on an adjacent row, a plurality of rotatable members mounted in spaced relationship to said plurality of cradles; and

means for rotatably mounting each of said plurality of rotatable members in each of said plurality of cradles such that each of said plurality of rotatable members extend above each of said plurality of cradles for rolling contact with an object placed thereon.

16. A conveyor as claimed in claim 14 or claim 15, further comprising:

at least two edge links;

first means for attaching one of said at least two edge links to said first projection to form a generally "H" shape with one of said at least two parallel support members of said at least one other of said plurality of cradles at one transverse end of said adjacent row; and

second means for attaching another of said at least two edge links to said second projection to form a generally "H" shaped with one other of said at least two parallel support members of said at least one other of said plurality of cradles at the opposite transverse end of said adjacent row;

whereby said at least two edge links in said adjacent row are staggered with respect to said at least two parallel support members in said parallel transverse row and said first and second projections in said parallel transverse rows are in spaced overlapping relation to said first and second projections in said adjacent row.

17. A conveyor as claimed in claim 14 or 16, wherein said links are formed of plastics material.