Title:
ガス燃焼装置
Document Type and Number:
Japanese Patent JP6861105
Kind Code:
B2
Abstract:
To facilitate a pressing operation of rotating an operation lever by a user and allow a user to surely operate the operation lever to a press-bottom position.SOLUTION: A safety valve 20, a first valve 30, and a second valve 40 are provided in series on a gas passage. An operation lever 50 that rotates from an initial position to a press-bottom position by a pressing operation by a user is urged by an urging member toward the initial position. The safety valve is maintained in an open-valve state after opening at the press-bottom position of the operation lever. The first valve and the second valve operate by receiving a drive force from the operation lever and receive an urging force in a direction opposite to the operation direction. The first valve closes at the initial position and a valve travel thereof increases as closer to the press-bottom position, while the second valve closes at the press-bottom position and a valves travel thereof increases as closer to the initial position. Then, the urging force of the first valve is applied in a direction rotating the operation lever toward the initial position, and the urging force of the second valve is applied in a direction rotating the operation lever toward the press-bottom position.SELECTED DRAWING: Figure 5
Inventors:
Kuroya Hirotaro
Application Number:
JP2017117285A
Publication Date:
April 21, 2021
Filing Date:
June 14, 2017
Export Citation:
Assignee:
Rinnai Corporation
International Classes:
F23K5/00; F23N5/26
Domestic Patent References:
| JP10169989A | ||||
| JP54130855U | ||||
| JP4004656U |
Foreign References:
| US4442853 |
Attorney, Agent or Firm:
Daisuke Mibayashi