| 摘要 |
PURPOSE:To enable avoidance of a deformation due to heating and exchange of a vane with an increase in joint strength, by a method wherein a connection plate of a vane is inserted into a slot of a body, screwed down with a screw provided at one end of the body to fix the vane on the body with an angular rod fitted into the connection plate. CONSTITUTION:To fix vanes 5a-5d on a body 2, with tapered connection plates 6a-6d inserted into slots 4a-4d, angular rods 9a-9d are pressed against cuts of the connection plates 6a-6d. Then, the connection plates 6a-6d are screwed down with male threads 8a-8d to advance the angular rods 9a-9d in the direction of the arrow (a) until pressed against the body 2. Thus, the vanes 5a-5d are joined on the body 2 mechanically with a taper of the connection plates 6a-6b, thereby providing a greater joint strength as compared with the bonding or soldering. This also eliminates problems such as deformation by heat and deterioration caused by thermal processing. Moreover, when the shape of the vane is altered, the replacement of the vane alone is possible.
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