Attachment device for a conveyor roller

A device for attachment of a conveyor roller on a profile, where the roller comprises a cylindrical portion and an assembly shaft extending projecting from a flank of the cylindrical portion, where the assembly shaft comprises a distal end passing through the profile by a receiving opening, and where the attachment device comprises:

• a plate, comprising:
• a rear surface configured for resting against the profile;
• an opening configured for allowing the passage of the distal end of the assembly shaft of the roller;
• a first clamping surface defining a portion of a contour of the opening, where the first clamping surface is configured for engaging with a first part of the radial outer surface of the assembly shaft of the roller;
• a first tightening hole passing through the plate and opening onto the rear surface;
• a tightening part, intended to be positioned in the plate, and comprising:
• a second clamping surface facing the first clamping surface of the plate, where the second clamping surface is configured for engaging with a second part of the radial outer surface of the assembly shaft of the roller, where said second part is opposite the first part of the radial outer surface of the assembly shaft;
• a second tightening hole facing the first tightening hole of the plate;
• a tightening member configured for passing through the second tightening hole of the tightening part, the first tightening hole of the plate, and a third tightening hole of the profile, where the tightening member serves to bring the plate and the tightening part closer along an approach direction;
• where either the plate or the tightening part comprises an inclined ramp, and the other comprises a sliding portion configured for engaging with the ramp, such that tightening of the tightening member induces the second clamping surface to approach the first clamping surface of the plate along a tightening direction until clamping the assembly shaft of the roller.