Heating device

Patent metadata

Field	Value
Publication number	US-10612853-B2
Application number	US-201615768644-A
Country	US
Kind code	B2
Filing date	Oct 14, 2016
Priority date	Oct 15, 2015
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

Embodiments include a heating device for heating a workpiece, comprising a furnace defining a closed space insulated from exterior and surrounded by a heat insulator, a heater disposed in the furnace to heat a workpiece, at least one support element for supporting a workpiece in the furnace, and a base holding the at least one support element. The base may comprise a mounting portion, a support element retaining portion for each support element, the retaining portion horizontally offset from the mounting portion, and a reinforcement portion configured to increase the strength of the base against deformation due to a load of the workpiece and/or support element applied through the support element retaining portion.

First claim

The invention claimed is:

1. A heating device for heating a workpiece, comprising:
a furnace defining a closed space insulated from exterior and surrounded by a heat insulator, the furnace having a sidewall;
a heater disposed in the furnace to heat a workpiece;
at least one support element for supporting a workpiece in the furnace; the at least one support element comprising two horizontally spaced bars arranged in the furnace; and
a base holding the at least one of the bars, the base comprising:
a planar portion that is horizontally planar and supports an end of each of the two bars on lower side of the bars by the respective support element retaining portion;
a columnar mounting portion supported by the sidewall, the columnar mounting portion extending downward from a part of the planar portion between the bars;
a support element retaining portion for each bar, the retaining portion horizontally offset from the columnar mounting portion; and
a reinforcement portion configured to increase the flexural strength of the planar portion of the base against deformation due to a load of the workpiece and/or bars applied through the support element retaining portion, the reinforcement portion comprising a pair of ribs extending upward or downward from the planar portion on opposite sides of the columnar mounting portion, each rib extending continuously along the direction in which the two bars are spaced.

2. The heating device of claim 1 , the ribs extending downward from the planar portion.

3. The heating device of claim 1 , on the planar portion of the base each support element retaining portion being offset from the columnar mounting portion in the longitudinal direction of the bars, and
the device further comprising for each bar a post disposed below the planar portion at a place corresponding to the end of the bar.

4. The heating device of claim 3 , the post being made of a material having a higher heat resistance than the base.

Assignees

• Toyota Tekko Kk

Inventors

• Kawahara Nobuyuki

Classifications

• F27D2005/0081

  Details · CPC title

• C21D9/00

  Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor · CPC title

• C21D1/18

  Hardening (C21D1/02 takes precedence); Quenching with or without subsequent tempering (quenching devices C21D1/62) · CPC title

• C21D1/00

  General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering · CPC title

• F27D5/00 Primary

  Supports, screens or the like for the charge within the furnace · CPC title