Conveying roller with frictionally fitting and/or integral coupling bushing

Patent metadata

Field	Value
Publication number	US-10926959-B2
Application number	US-201716469195-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Dec 16, 2016
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A motor-driven conveying roller for conveying installations for conveying containers, pallets and the like, having a roller body, of which the outer circumferential surface constitutes a bearing surface for articles, having a drive unit, which is arranged within an interior of the roller body, and having a coupling unit, which is designed to transmit a torque from the drive unit to an inner circumferential surface of the interior of the roller body and has a coupling bushing, which has a drive portion, connected to the drive unit, and an outer peripheral output portion, wherein the coupling bushing is connected to the inner circumferential surface of the roller body in a frictionally fitting and/or integral manner, for torque-transmitting purposes, only at certain points.

First claim

The invention claimed is:

1. A motor-driven conveying roller for conveying installations for conveying an article, the conveying roller comprising:
a roller body having an outer circumferential surface constituting a bearing surface for the article;
a drive unit disposed within an interior of the roller body; and
a coupling unit adapted to transmit a torque from the drive unit to an inner circumferential surface of the interior of the roller body and comprising a coupling bushing having a drive portion connected to the drive unit and an outer peripheral output portion, wherein the coupling bushing is connected to the inner circumferential surface of the roller body by a friction fit connection only at certain points, without the use of mechanical fasteners.

2. The conveying roller as claimed in claim 1 , wherein the torque-transmitting connection of the coupling bushing to the inner circumferential surface of the roller body comprises a circumferential frictionally fitting.

3. The conveying roller as claimed in claim 1 , wherein the outer peripheral output portion of the coupling bushing comprises a plurality of radial noses in contact with the inner circumferential surface of the roller body when assembled.

4. The conveying roller as claimed in claim 3 , wherein the inner circumferential surface of the roller body defines a first diameter and the plurality of radial noses together define a second diameter and wherein the second diameter of the plurality of radial noses together is larger than the first diameter of the inner circumferential surface.

5. The conveying roller as claimed in claim 3 , wherein the plurality of radial noses are of compliant design.

6. The conveying roller as claimed in claim 3 , wherein the plurality of noses are of internally hollow design.

7. The conveying roller as claimed in claim 1 , wherein the outer peripheral output portion of the coupling bushing is welded to the inner circumferential surface of the roller body.

8. The conveying roller as claimed in claim 1 , wherein between three and twenty separate connecting points are disposed around a circumference of the output portion of the coupling bushing, the coupling bushing being connected to the inner circumferential surface of the roller body at the connecting points.

9. The conveying roller as claimed in claim 8 , wherein between five and fifteen separate connecting points are disposed around the circumference of the output portion of the coupling bushing.

10. The conveying roller as claimed in claim 9 , wherein between seven and ten separate connecting points are disposed around the circumference of the output portion of the coupling bushing.

11. A motor-driven conveying roller for conveying installations for conveying an article, the conveying roller comprising:
a roller body having an outer circumferential surface constituting a bearing surface for the article;
a drive unit disposed within an interior of the roller body; and
a coupling unit adapted to transmit a torque from the drive unit to an inner circumferential surface of the interior of the roller body and comprising a coupling bushing having a drive portion connected to the drive unit and an outer peripheral output portion;
wherein the coupling bushing is connected to the inner circumferential surface of the roller body by a friction fit connection only at certain points without the use of mechanical fasteners, and wherein the coupling bushing comprises a radially outer part defining the outer peripheral output portion and a radially inner part, which forms part of a shaft/hub connection and is connected to an output shaft of the drive unit.

12. The conveying roller as claimed in claim 11 , wherein the radially inner part is formed from a flexible material.

13. The conveying roller as claimed in claim 12 , wherein the radially inner part is formed from an elastomer material.

14. The conveying roller as claimed in claim 11 , wherein the radially outer part comprises a corrugated sheet-metal strip.

15. The conveying roller as claimed in claim 14 , wherein the radially inner part has an essentially cylindrical circumferential surface on which the outer part is disposed.

16. The conveying roller as claimed in claim 11 , wherein the radially outer part is in form-fitting relation relative the radially inner part to prevent relative rotation between the radially outer part and the radially inner part.

17. The conveying roller as claimed in claim 11 , wherein the radially inner part further comprises a stop against which a circumferential end portion of the radially outer part strikes to secure against relative rotation between the radially outer part and the radially inner part.

18. The conveying roller as claimed in claim 1 , wherein the coupling bushing is mounted in an axially displaceable manner in relation to the drive unit.

19. The conveying roller as claimed in claim 1 , wherein the coupling bushing has a central aperture into which an output shaft of the drive unit is inserted, wherein the central aperture has protrusions and apertures extending radially in alternating fashion around an inner circumference of the central aperture.

20. The conveying roller as claimed in claim 19 , wherein the protrusions are flattened concavely at a radially inner tip thereof.

21. The conveying roller as claimed in claim 19 , wherein the coupling bushing has an axial aperture proximate one or more of the radial protrusions.

22. The conveying roller as claimed in claim 21 , wherein the axial apertures are essentially trapezoidal in cross section.

23. The conveying roller as claimed in claim 19 , wherein a lateral flank of one or more of the protrusions are oriented essentially radially.

24. A motor-driven conveying roller for conveying installations for conveying an article, the conveying roller comprising:
a roller body having an outer circumferential surface constituting a bearing surface for the article;
a drive unit disposed within an interior of the roller body; and
a coupling unit adapted to transmit a torque from the drive unit to an inner circumferential surface of the interior of the roller body and comprising a coupling bushing having a drive portion connected to the drive unit and an outer peripheral output portion;
wherein the coupling bushing is connected to the inner circumferential surface of the roller body by an integral connection comprising spot welding only at certain points, and wherein the coupling bushing has an axially extending collar on which the outer peripheral output portion is formed, wherein a plurality of weld spots are provided for connecting the collar to the inner circumferential surface of the roller body.

25. The conveying roller as claimed in claim 24 , wherein the axially extending collar extends axially away from a portion which encases an inner part and wherein the torque-transmitting connection of the coupling bushing to the inner circumferential surface of the roller body comprises an integral connection.

Assignees

• Interroll Holding Ag

Inventors

• Lindemann Harry
• Langensiepen Dominik
• Weichbrodt Reinhold

Classifications

• F16B5/08

  by means of welds or the like (welding B23K) · CPC title

• B65G23/08 Primary

  with self-contained driving mechanisms, e.g. motors and associated gearing · CPC title

• F16D1/08

  with clamping hub; with hub and longitudinal key · CPC title

• F16D1/104

  having retaining means rotating with the coupling and acting only by friction · CPC title

• F16D1/068

  involving gluing, welding or the like · CPC title