Title:
HOLE PLUG
Document Type and Number:
WIPO Patent Application WO/2013/151168
Kind Code:
A1
Abstract:
A drain outlet (40) is formed on a housing (20) of a hole plug (10), and a shaft (44) of a flap valve (42) is pivotally supported in a rotatable manner by a bearing (47) in the housing (20). A coil spring (50) is disposed on the bearing (47) of the housing (20), and when the quantity of water inside the housing (20) increases, the flap valve (42) rotates against the biasing force of the coil spring due to water pressure, opening the drain outlet (40), thereby draining the water.
Inventors:
YAGAME NAOFUMI (JP)
Application Number:
PCT/JP2013/060529
Publication Date:
October 10, 2013
Filing Date:
April 05, 2013
Export Citation:
Assignee:
NIFCO INC (JP)
International Classes:
F16J13/24; B62D25/20
Foreign References:
| JPH0177582U | 1989-05-25 | |||
| JPH0179671U | 1989-05-29 | |||
| JPH0734068U | 1995-06-23 | |||
| JPS63101179A | 1988-05-06 | |||
| JPS63112947U | 1988-07-20 |
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
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