Patent ID: 7367794
Filing Date: 2008-05-06
Classification: B29C,F28F

Abstract:
1. A heating and cooling roller comprising: a non-rotatable inner cylinder; a rotatable outer cylinder disposed coaxially with the inner cylinder; an annular medium channel between an outer peripheral surface of the inner cylinder and an inner peripheral surface of the outer cylinder; a plurality of partition members, each of which extending in an axial direction of the inner cylinder to divide the annular medium channel in a peripheral direction, thereby dividing the medium channel into a plurality of small medium channels; a plurality of slit-like medium inflow ports provided in a wall portion of the inner cylinder along an axis of the inner cylinder at different circumferential positions on the inner cylinder so that the medium inflow ports are connected to the small medium channels, respectively; and a plurality of slit-like medium outflow ports provided in the wall portion of the inner cylinder along the axis of the inner cylinder at different circumferential positions on the inner cylinder so that the medium outflow ports are connected to the small medium channels, respectively.