| 摘要 |
By lead-ins (2) of flexible material for tight-fitting lead-in of items, preferably pipes (16) through a wall (8), including particularly circular, thin-walled and/or profiled pipes, where the same lead-in is double-acting, there are several tolerances the observance of which are decisive for whether the requirements for the sealing of an established lead-in can be met. Thus is indicated a lead-in including an internal part (18) for accommodating an item in the shape of pipe (16) and an external part (20), where the internal (18) and external (20) parts are integrated in a base (54), where between the parts (18,20) a key slot (24) is formed for interacting accommodation of a lock bushing (30) that is inserted with axial orientation in the key slot (24) whereby a relative radial displacement between the internal part (18) and the external part (20) of the bushing (4) occurs, and where the lock bushing (30) includes retainer means (32) for retaining the lock bushing (30) in the key slot (24). Hereby is formed an efficient sealing between the outer side of the bushing and the hole (6) in the wall (7), and also independence between this sealing and the sealing between the internal part (18) and the lead-in pipe (16) is provided, causing approximately cancelling of said tolerances.
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