Supporting roller
First Claim
1. A supporting roller of the type having a skirt, for supporting a return side of an endless chain of a chain conveyor and, coaxial with the skirt, a hub designed to rotate idly on a journal, wherein the roller comprises a sleeve made of a material having high friction laid over the skirt, said sleeve having an inward annular projection tightly clamped between first and second opposing shoulders of said hub and said skirt, respectively.
6 Assignments
0 Petitions
Accused Products
Abstract
A supporting roller (12, 122, 123) that has a greater than usual capacity for constant operation comprises a skirt (14), for supporting a return side (16) of an endless chain of a chain conveyor, and, coaxial with the skirt (14), a hub (18) designed to rotate idly on a journal (19), and, in addition, a sleeve (20) made of a material having high friction laid over the skirt (14), in particular overmolded around the skirt (14) or slid axially onto the skirt (14).
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Citations
27 Claims
- 1. A supporting roller of the type having a skirt, for supporting a return side of an endless chain of a chain conveyor and, coaxial with the skirt, a hub designed to rotate idly on a journal, wherein the roller comprises a sleeve made of a material having high friction laid over the skirt, said sleeve having an inward annular projection tightly clamped between first and second opposing shoulders of said hub and said skirt, respectively.
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23. A supporting roller of the type having a skirt, for supporting a return side of an endless chain of a chain conveyor and, coaxial with the skirt, a hub designed to rotate idly on a journal, wherein the roller comprises a sleeve made of a material having high friction laid over the skirt;
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wherein the hub fits telescopically into the skirt;
wherein a plurality of spokes extend inwards from the skirt and join a tube positioned coaxially with the skirt and forming a seat for the hub;
wherein an end wall of the skirt extends from the latter towards the tube;
wherein the sleeve is overmoulded around the skirt and extends over the end wall of the skirt so that it covers it externally.
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24. A supporting roller of the type having a skirt, for supporting a return side of an endless chain of a chain conveyor and, coaxial with the skirt, a hub designed to rotate idly on a journal, wherein the roller comprises a sleeve made of a material having high friction laid over the skirt;
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wherein the hub and the skirt are connected by a snap connection;
wherein there is at least one seat in the skirt for at least one tooth projecting from the hub to snap into to form the said snap connection. - View Dependent Claims (25)
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- 26. A support for a return side of an endless conveyor chain, comprising at least two supporting rollers rotating idly side by side on a journal, wherein each roller includes a hub mounted on the journal and supporting a skirt on which is disposed a friction sleeve, said sleeve having an inward annular projection tightly clamped between first and second opposing shoulders of said hub and said skirt, respectively.
Specification