| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve sealing between a pallet truck and a circulating gas hood with high performance for a long period without making a combustion speed in a width direction of a pallet truck nonuniform. <P>SOLUTION: There is provided a sealing device 11 which shields a circulating gas in a circulating gas hood 2, covering an upper space of a pellet truck 1 moving on rails, from an air atmosphere. An arm member 13 is fitted to an outer lower-end part of a side plate 2a of the circulating gas hood 2 whose inner width is made narrower than the inner width of the pallet truck 1 so that a lower-end part 13a freely swings around the upper-end part 13a as a fulcrum to contact and leave the side of the side plate 2a of the circulating gas hood 2. A seal member 12 which comes into contact with an upper end face 1aa of the side plate 1a of the pallet truck 1 is fitted to the lower-end part 13b of the arm member 13. The seal member 12 and the outer lower-end part of the side plate 2a of the circulating gas hood 2 are connected to each other by a plate material 14. Sealing performance of the circulating gas hood is improved to substantially eliminate blowing of a hot blast or suction of outside air from a gap between a side plate upper part of the pallet truck and the circulating gas hood. <P>COPYRIGHT: (C)2013,JPO&INPIT |
