| 摘要 |
The present invention may be basically described as a gasket (2) for converting a standard mechanical joint into a restrained mechanical joint without the need for altered configuration of the bell (12), spigot (10), or gland (11) of the joint, and without the need for additional fittings or devices. A standard mechanical joint's bell and gland configuration can be employed to connect a spigot end of one pipe length of the bell end of another pipe length in a restrained relationship, with the restraint based on forces superior to rubber-to-pipe friction. The invention includes forming the gasket to fit within the bell in such a manner that a void, or gutter (63), exists during rest, into which void the gasket compresses, which in turn influences the rotational movement of the segment. The configuration of the gasket influences the timing and extend of rotation throughout the process of securing the gland to the bell. |
