Title:
排水栓装置
Document Type and Number:
Japanese Patent JP7407446
Kind Code:
B2
Abstract:
To provide a drain plug device capable of more surely preventing various troubles even when a downward large force is applied to a plug cover with a drain port being in a closed state.SOLUTION: A plug cover 6 has a packing part 62, and when a downward force is applied to the plug cover 6 with a drain port 102 being in a closed state, the packing part 62 is elastically deformed so that the plug cover 6 can sink downward. The plug cover 6 is provided with a regulation part 615 for preventing further sinking of the plug cover 6 by coming into contact with a receiving part 23 in a state that the plug cover 6 sinks downward when the drain port 102 is in a closed state. In a state that the regulation part 615 is in contact with the receiving part 23, a lifting part 52b for lifting the plug cover 6 of a support shaft 52 and the plug cover 6 are constituted to be separated from each other in the vertical direction. Therefore, even when a downward large force is applied to the plug cover 6, it is possible to more surely prevent the force from being transmitted to the support shaft 52.SELECTED DRAWING: Figure 1
Inventors:
Shinichi Ohta
Kohei Kitagawa
Kohei Kitagawa
Application Number:
JP2020080892A
Publication Date:
January 04, 2024
Filing Date:
May 01, 2020
Export Citation:
Assignee:
Nippon Alpha Co., Ltd.
International Classes:
E03C1/22; A47K1/14; E03C1/23
Domestic Patent References:
| JP2012241489A | ||||
| JP202037776A | ||||
| JP2019218839A | ||||
| JP201796058A | ||||
| JP2005188699A | ||||
| JP2003105825A |
Attorney, Agent or Firm:
Mitsuo Kawaguchi