| 摘要 |
The lifting bag comprises an inside inside bladder (20) having a nipple (22), and a shell (24) of reinforced rubber material located outside of the inside bladder (20) and closely enclosing the inside bladder (20). The shell (24) comprises a passage for the nipple (22). The inside bladder (20) is produced in a first vulcanizing step; the shell (24) is added and is produced in a subsequent second vulcanizing step. A separating means (26) is located between the shell (24) and the inside bladder (20); the shell (24) is not connected with the inside bladder (20). A method for producing such a lifting bag is provided.
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