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Patent Searching and Data


Title:
DOOR STRUCTURE OF HEAT-TREATING FURNACE
Document Type and Number:
WIPO Patent Application WO/2017/164170
Kind Code:
A1
Abstract:
This door structure of a heat-treating furnace for performing heat treatment of workpieces is configured to comprise: a first hole-formed member and a second hole-formed member that each have formed therein a workpiece through-hole through which a workpiece being conveyed passes; and a sheet shutter, wherein the sheet shutter is provided with a winding part and a shutter part, the shutter part is disposed between the first hole-formed member and the second hole-formed member, the shutter part is provided with a first sheet part that covers the workpiece through-hole in the first hole-formed member when the shutter part is closed, and with a second sheet part that covers the workpiece through-hole in the second hole-formed member when the shutter part is closed, and a gas-storing part is formed between the first hole-formed member and the second hole-formed member when the door of the shutter part is closed.

Inventors:
SASAKI KAZUYA (JP)
FUJITA TAKAHIRO (JP)
Application Number:
JP2017/011210
Publication Date:
September 28, 2017
Filing Date:
March 21, 2017
Export Citation:
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Assignee:
DOWA THERMOTECH CO LTD (JP)
International Classes:
F27D7/06; F27B9/30; F27D1/18
Foreign References:
JP2010043795A2010-02-25
JP2007187398A2007-07-26
JPS58180268U1983-12-02
Attorney, Agent or Firm:
HAGIWARA, Yasushi et al. (JP)
Yasushi Hagiwara (JP)
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