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Title:
BASE JOINT AND DRAIN SYSTEM USING THE SAME
Document Type and Number:
Japanese Patent JP2009144480
Kind Code:
A
Abstract:

To provide a base joint in which a water film does not block a part between a vertical-pipe-connecting pipe part and a horizontal main pipe connecting pipe part even if a bend pipe part is bent at a sharp angle to reduce its size in height and provide a drainage system capable of reducing the unit size of the base joint and excellent in drainage performance.

A base joint includes the vertical-pipe-connecting pipe part for connecting the lower end of a vertical main pipe of a drain channel to a horizontal main pipe to be connected to the lower end of the vertical main pipe; the horizontal main pipeconnecting pipe part to be connected to the horizontal main pipe; and the bend pipe part for connecting the vertical-pipe-connecting pipe part and the horizontal main pipe connecting pipe part. A pair of vane-form ribs protruding in the vertical pipe connecting pipe part on both sides of the center axis of the horizontal main pipe connecting pipe part at intervals are provided on an inner wall surface of the vertical pipe connecting pipe part closer to the side of the horizontal main pipe connecting pipe part than the center of the vertical pipe connecting pipe.


Inventors:
SAKAMOTO MASAKATSU
Application Number:
JP2007000325469
Publication Date:
July 02, 2009
Filing Date:
December 18, 2007
Export Citation:
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Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
E03C1/12; E03C1/122
Domestic Patent References:
JPS63243590A1988-10-11
JP2006169816A2006-06-29
JP2003113990A2003-04-18
JPH01223229A1989-09-06
JPS60169371U1985-11-09
JPH09310389A1997-12-02
JPH07166589A1995-06-27
JP2004169538A2004-06-17
JP2006037371A2006-02-09
JPH11217859A1999-08-10
JPS63243590A1988-10-11
JP2006169816A2006-06-29
JP2003113990A2003-04-18
Attorney, Agent or Firm:
Katsunori Sugimoto