Belt Skew in Multi Roller Systems with Arbitrary Roller Tilt(Mechanical Systems)

YANABE Shigeo, ISHIHARA Hiroyuki, OJIMA Shohei

doi:10.1299/kikaic.75.2619

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Other Title

任意の傾きを持つ複数ローラ系におけるベルトのスキュー(機械力学,計測,自動制御)
任意の傾きを持つ複数ローラ系におけるベルトのスキュー
ニンイノカタムキオモツフクスウローラケイニオケルベルトノスキュー

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Description

Recently, flat belts are widely used in toner image transfer units of full color copiers and printers. In these machines, both belt slip in the belt running direction and belt skew (side walk) in the belt lateral direction affect serious influence on image quality. For a two-roller-belt system, characteristics of the belt skew, skew mechanism and prevention methods have been studied well, only when a roller tilts in the plane parallel or perpendicular to the belt surface. However, for the other cases, studies have not been done yet. In this paper, we treat the cases where each roller tilts in arbitrary direction. The system treated here is composed of two or three rollers and a flat belt, and characteristics of the belt skew are investigated by the aid of computer motion simulation. The simulation results show that a belt skew rate (=skew displacement/belt traveling distance) changes sinusoidally against the roller tilt direction. The direction is measured from the direction where the belt enters the roller, following the roller rotation. The skew rate of a total system is expressed as a summation of the skew rate due to each roller tilt. The skew rate of a multi-roller-belt system becomes zero, when both the tilt angle and its direction of a roller are suitably chosen.

Journal

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 75 (758), 2619-2626, 2009

The Japan Society of Mechanical Engineers

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