Patent ID: 8523100
Filing Date: 2013-09-03
Classification: B65H

Abstract:
1. Bobbin holder for tensioning a bobbin tube and for accommodating a wound yarn bobbin with a rotatable drive shaft, which is connected to a drive on one supported end and which on a free end bears a tensioning device, wherein the tensioning device on the circumference of the drive shaft has several tension tubes and at least one tension ring arranged between the tension tubes, wherein the tension ring is embodied in a deformable manner and projects with a full perimeter tension collar between the tension tubes and wherein a tensioning piston guided on the free end of the drive shaft acts on at least one of the tension tubes, which is guided in a displaceable manner on the circumference of the drive shaft to deform the tension ring, the tension ring having a through separating slot on the circumference, which separating slot extends between two opposite ring ends of the tension ring, wherein the tension ring has respectively one tilted bearing area on both front faces of the tension collar, which bearing areas interact with the contact surfaces of the tension tubes, and wherein the tension ring has an inner cylindrical holding web, which is connected to the tension collar on the circumference in a center region such that the holding web forms projections to the front faces of the tension ring.