| 摘要 |
PURPOSE:To improve the sealing performance by forming partially protruding projections on the end face block side of the side face sealing members which are interposed between side face blocks, and by interposing a sealing member which makes contact with the aforementioned projections between the side face blocks and the end face block. CONSTITUTION:Both the external peripheries of side face sealing members 14 and 15 which are interposed between side face blocks 1 and 2 are placed inward from both the external peripheries of the abutment faces of the side face blocks 1 and 2 respectively, however, projections 14a and 15a partially projected toward said end face block 3 are provided at the positions where the end face block 3 is to be fit to the side face blocks. On the other hand, an end face sealing member 16 to be interposed between the side face blocks 1 and 2 and the end face block 3 is capable of making contact with the side face sealing members 14 and 15 and shaped in the ring-like form which improves the sealing performance at the end face of a vacant part 9. |
