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Title:
DRAIN TRAP
Document Type and Number:
WIPO Patent Application WO/2018/008293
Kind Code:
A1
Abstract:
This drain trap 1 comprises: a reservoir 13; a float 16; a cylinder member 21 which is provided penetrating through a side wall 19 of the reservoir 13, the inside of the cylinder member 21 forming a discharge path 22 of the drain, and the end part at the reservoir 13 side of the cylinder member 21 having formed therein a communication port 23 from which the drain flows into the discharge path 22; a pressure chamber 36; and a discharge valve 31 that is inserted into the cylinder member 21, that has a pilot flow path 35 through which the drain of the reservoir 13 flows into the pressure chamber 36, and that advances and retreats in accordance with the pressure in the pressure chamber 36, thereby opening and closing the discharge path 22. The size of the communication port 23 and the position thereof in the circumferential direction of the cylinder member 21 are set such that the resultant force of the suction, which the drain generates by the drain flow to the communication port 23, reaches a force that pulls the float 16 downwards.

Inventors:
ASAOKA Ken (LTD. 881 Nagasuna Noguchicho, Kakogawa-sh, Hyogo 11, 〒6758511, JP)
Application Number:
JP2017/019860
Publication Date:
January 11, 2018
Filing Date:
May 29, 2017
Export Citation:
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Assignee:
TLV CO.,LTD. (881 Nagasuna, Noguchicho Kakogawa-sh, Hyogo 11, 〒6758511, JP)
International Classes:
F16T1/22; F16T1/20
Foreign References:
JP2015224753A2015-12-14
JP2011127654A2011-06-30
JP2003240190A2003-08-27
JPH1061885A1998-03-06
Attorney, Agent or Firm:
TERAZONO Kenichi et al. (Yamabiko Bldg, 9-16 Oyodominami 1-chome, Kita-ku, Osaka-sh, Osaka 75, 〒5310075, JP)
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