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Title:
CONVEYANCE ROLLER FOR HEATING FURNACE
Document Type and Number:
WIPO Patent Application WO/2019/193895
Kind Code:
A1
Abstract:
Provided is a conveyance roller for a heating furnace, the roller being resistant to local deformation. A steel sheet is conveyed in a state held entirely by holding projections 70, which are made of a heat-resistant alloy and protrude higher than a shielding member 72, at multiple positions on the outer circumferential surface of a roller body 68 at a specified interval in the longitudinal direction of the roller body 68. The holding projections 70 made of a heat-resistant alloy contact the the inward-conveyed, cold steel sheet over little contact area, so the transmission of heat from the roller body 68 to the steel sheet is minimal, rapid cooling of the roller body 68 is suppressed due to radiative cooling from the hot roller body 68 being shielded by the shielding member 72 provided between the holding projections 70, and local deformation of the outer circumferential surface of the roller body 68 is suppressed. As a result, the holding projections 70 do not deform, and the occurrence of hindrances to the conveyance of the steel sheet is resolved.

Inventors:
UEDA Hirotoshi (LIMITED 1-36, Noritake-shinmachi 3-chome, Nishi-ku, Nagoya-sh, Aichi 01, 〒4518501, JP)
SUZUKI Kiyotaka (LIMITED 1-36, Noritake-shinmachi 3-chome, Nishi-ku, Nagoya-sh, Aichi 01, 〒4518501, JP)
KANDA Takeyuki (LIMITED 1-36, Noritake-shinmachi 3-chome, Nishi-ku, Nagoya-sh, Aichi 01, 〒4518501, JP)
YAMAMOTO Shigehito (LIMITED 1-36, Noritake-shinmachi 3-chome, Nishi-ku, Nagoya-sh, Aichi 01, 〒4518501, JP)
Application Number:
JP2019/008476
Publication Date:
October 10, 2019
Filing Date:
March 04, 2019
Export Citation:
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Assignee:
NORITAKE CO., LIMITED (1-36, Noritake-shinmachi 3-chome Nishi-ku, Nagoya-sh, Aichi 01, 〒4518501, JP)
International Classes:
C21D1/00; B65G39/07; B65H5/06; F27B9/24
Domestic Patent References:
WO1996005018A11996-02-22
Foreign References:
JP2002172452A2002-06-18
JP2000065482A2000-03-03
JPH10263774A1998-10-06
JPH07173525A1995-07-11
JPH0972668A1997-03-18
JPS6425962A1989-01-27
Attorney, Agent or Firm:
IKEDA Haruyuki et al. (Ikeda Patent Office, Nagoya-Dia. Bldg. No.2 15-1, Meieki 3-chome, Nakamura-ku, Nagoya-sh, Aichi 02, 〒4500002, JP)
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