| US 7,594,329 B2 | ||
| Heat insulation roller and manufacturing method thereof | ||
| Akira Nuita, Shizuoka-ken (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and Toshiba Tec Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Mar. 15, 2005, as Appl. No. 11/79,385. | ||
| Prior Publication US 2006/0207097 A1, Sep. 21, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B21K 1/02 (2006.01); F28F 5/02 (2006.01) | ||
| U.S. Cl. 29—895.2 [492/46; 399/331] | 11 Claims |
| 2. A manufacturing method of a heat insulation roller, comprising:
fixing almost uniformly a plurality of hollow pipes in a gap between a core roller and an outer peripheral roller coaxial
with the core roller;
removing ends of the outer peripheral roller and the hollow pipes except the core roller; and
secondarily working the core roller,
wherein the core roller, the outer peripheral roller, and the hollow pipes are structured so as to have thermal conductivity
of 90 W/m-K or less.
|