Title:
SPRINKLER HEAD
Document Type and Number:
WIPO Patent Application WO/2020/225948
Kind Code:
A1
Abstract:
[Problem] To prevent lodgment during an operation of a sprinkler head. [Solution] The present invention comprises: a main body 1 provided therein with a nozzle 12 connected to a water supply pipe; a valve 3 for closing the nozzle 12 in normal time; a pair of frames 14 extending in the water discharge direction of the nozzle 12 from the main body 1; a deflector 2 installed on the tip of the frame 14, the tip being coupled onto the extension of the nozzle center axis A; and a thermosensitive actuating part 4 installed between the valve 3 and the deflector 2, wherein the thermosensitive actuating part 4 includes a link 41 formed by coupling two sheets of metal plate 44 with a fusible alloy, a lever 43 and a post 42 which are engaged with the link 41, one end of the post 42 is disposed on the valve 3, the other end of the post 42 is engaged with the lever 43, the lever 43 has a protruding section 50 in the vicinity of the engagement section with the post 42, and the protruding section 50 collides with the post 42 by a rotary movement of the lever 43 during an operation of the thermosensitive actuating part 4.
Inventors:
CHIBA MASAHARU (JP)
SASAKI YOSHIKI (JP)
SASAKI YOSHIKI (JP)
Application Number:
PCT/JP2020/003081
Publication Date:
November 12, 2020
Filing Date:
January 29, 2020
Export Citation:
Assignee:
SENJU SPRINKLER CO LTD (JP)
International Classes:
A62C37/12
Foreign References:
| JP2019037463A | 2019-03-14 | |||
| JPH0490369U | 1992-08-06 | |||
| JPS57170762U | 1982-10-27 |
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