Title:
HEATING COOKER
Document Type and Number:
Japanese Patent JP2019143820
Kind Code:
A
Abstract:
To prevent sliding at a motor from occurring caused by the energizing force of a cam spring when electricity supply to the motor is suspended, in a heating cooker which comprises a source valve and a gas valve device 7 with a safety valve 72 and a flow control valve 73 operated by an operation rod 76 driven in the axial direction by a motor 74 via an interlock mechanism 75 integrated therein, interposed in a gas supply pass to a burner, where the motor is made to rotate in the forward direction when an ignition operation is carried out, until a cam body 754, i.e., a constituent component of the interlock mechanism moves against a cam spring 758 from a predetermined position whereon the cam body is stopped by a cam stopper 757, to move a valve body 722 for a safety-valve to a valve opening position to supply electricity to an electric magnet 725 under this condition so as to suck and hold the valve body for a safety-valve on the valve opening position, and to open the source valve subsequently, under the condition of suspending electricity supply to the motor.SOLUTION: After a valve body 722 for a safety valve is sucked and held on a valve opening position, a motor 74 is made to rotate in the reverse direction to return a cam body 754 to a prescribed position, and thereafter a source valve is opened under the condition of suspending electricity supply to the motor 74.SELECTED DRAWING: Figure 3
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Inventors:
KONDO HIDEYUKI
Application Number:
JP2018025606A
Publication Date:
August 29, 2019
Filing Date:
February 16, 2018
Export Citation:
Assignee:
RINNAI KK
International Classes:
F23N1/00; F23K5/00; F24C3/10
Domestic Patent References:
| JP2018013274A | 2018-01-25 | |||
| JP2006234288A | 2006-09-07 | |||
| JP2014062662A | 2014-04-10 | |||
| JP2014085083A | 2014-05-12 | |||
| JP2013068356A | 2013-04-18 |
Foreign References:
| US6234189B1 | 2001-05-22 |
Attorney, Agent or Firm:
Seiryu Corporation