| 摘要 |
The present invention provides a coupling body (32) for coupling a negative channel mould (24), which produces a channel portion of a shaft bottom part (12) to be manufactured from concrete, with a holding device (22), the coupling body (32) comprising a fixing portion (34) for fixing the coupling body (32) to the negative channel mould (24) and first coupling means (42) for magnetically coupling with a first counter coupling means (52) of the holding device (22), wherein the coupling body (32) further comprises second coupling means (48) for mechanically coupling with second counter coupling means (54) of the holding device or of another device. |
