中科微点-全球专利检索

  1. Login
  2. Sign Up
Invention Grant
US07974563B2 Image heating apparatus and pressure roller therein having metal core and two elastic layers with different thermal conductivities 有权
图像加热装置和加压辊，其中具有金属芯和具有不同热导率的两个弹性层

Image heating apparatus and pressure roller therein having metal core and two elastic layers with different thermal conductivities
Abstract:
A pressure member contacts a heating member to form a nip part where a recording material is heated and pinched-conveyed, and includes a first elastic layer and a second elastic layer 24b having a higher thermal conductivity than that of the first elastic layer. An elastic layer is formed of a combination of the first elastic layer and the second elastic layer so that the thickness of the second elastic layer at the end portion is thicker than the thickness of the second elastic layer at the center portion in a longitudinal direction perpendicular to a recording material conveyance direction. Accordingly, when using the pressure member to contact the heating member to form the nip part, it is possible to reduce the difference between a center nip width and an end-portion nip width of the nip part.
Abstract(Chinese):

压力构件与加热构件接触以形成记录材料被加热和夹持输送的辊隙部分，并且包括具有比第一弹性层的导热性更高的导热性的第一弹性层和第二弹性层24b。 弹性层由第一弹性层和第二弹性层的组合形成，使得端部处的第二弹性层的厚度比纵向垂直于中心部分的第二弹性层的厚度厚 到记录材料输送方向。 因此，当使用压力构件接触加热构件以形成夹持部时，可以减小夹持部的中心夹持宽度和端部夹持宽度之间的差。

Public/Granted literature
Information query
Espacenet
Patent Agency Ranking
0/0