| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a deterioration in drainage performance of a collecting pipe joint even if a dimension of a diameter of each socket of a horizontal branch pipe is almost equal in value to that of a diameter of an upper socket, and to keep the manufacturing cost of the collecting pipe joint low. <P>SOLUTION: This collecting pipe joint comprises: a body part; a plurality of horizontal-branch-pipe sockets 28u, 24 and 29u which are formed in such a manner as to be oriented in the same direction in a side-by-side arranged state, and to which a plurality of drain horizontal branch pipes 3, 4 and 5 arranged in parallel in a side-by-side arranged state are connected, respectively; a plurality of socket pipes 28 and 29 which make the body part and the sockets 28u, 24 and 29u communicate with one another; the upper socket 22 to which a drain standpipe on an upper floor is connected; and a lower connection part to which a drain standpipe on an lower floor is connected. The dimensions of the diameters of the sockets 28u, 24 and 29u are set equal in value to the dimension of the diameter of the upper socket 22, or set at a value equivalent to about 60% or more of the dimension of the diameter of the upper socket 22; one 24 of the socket pipes is formed as a straight pipe; and the other socket pipes 28 and 29 are formed like an elbow. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
