| 摘要 |
PURPOSE:To enable to adjust the burner position with a small drive force, by setting the returning force of a plate spring for burner support plate toward a given direction with a given magnitude. CONSTITUTION:A burner 1 consisting of a burner 6 and a burner chamber 7 is loaded on the upper end of a moving spacer 10, an adjusting screw 21 is provided with a bevel gear set 22, and the screw 21 is externally driven with a knob 23. Accordingly, by turning the knob 23 externally, the burner 1 moves up or down. Further, the moving spacer 10 is set and supported with the screw 21 so that plate springs 18A, 18B bend downward. As a result, the elastic restoring force F of one end of plate springs 18A, 18B is set opposite to the direction of gravity, and the magnitude of the elastic restoring force F is set to the same amplitude as the weight W exerted one end of the plate springs 18A, 18B, allowing the position adjustment of burner with a small driving force. |
