Platen roll core

Details Platen roll core Platen roll core

B - Operations, Transporting

41

J

197/86

B41J 11/02 (2006.01) B41J 11/053 (2006.01)

Patent

CA 1329913

ABSTRACT OF THE DISCLOSURE A platen roll core has a plurality of roll elements, and a spacer interposed between adjacent roll elements for attenuation of propagated vibrations. The core, if seen in terms of vibrating system, is equivalent to the sum of vibrating systems independent of one another and corresponding to the respective roll elements. The axial length of each roll element is set to such a value that the natural frequency thereof in an axial flexural oscillation mode is greater than a frequency of vibration applied from a vibration source, thereby to avoid the resonance of the core in the axial flexural oscillation mode with the vibration source, which is a main cause of an increase in noise level.

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